I could not be more thrilled with my decision. This cookie is set by GDPR Cookie Consent plugin. Some of the data that are collected include the number of visitors, their source, and the pages they visit anonymously. I pick the 8 inch barrel. Nitride coated bolt carrier groups are an upgrade over the basic phosphate coating. We are going to briefly cover a simplified description of how the BCG functions. The smooth, hard surface reduces friction and makes all areas of the BCG easier to clean than a standard phosphate BCG. The coating process is also line-of-sight, so complex components like a BCG will have slightly varying degrees of coating thickness in internal areas. Verified Owner, The steel is heated up and exposed to a nitrogen rich environment (salt bath is a common method). This enables the bolt to withstand the extreme pressures produced by firing a round. All MIL-SPEC BCGs will be M16-style, making it the most common BCG type on the market. Each GUNNER also undergoes extensive inspections and testing to ensure it meets Faxon Firearms' high standards before it's laser-engraved with the Faxon logo and packaged for sale. Analytical cookies are used to understand how visitors interact with the website. The solution used in this process contains sodium borohydride or alkylamine borane, as well as a source of nickel ions and control chemicals. A variation of the _gat cookie set by Google Analytics and Google Tag Manager to allow website owners to track visitor behaviour and measure site performance. Technology and innovation have advanced significantly since the Vietnam War, and modern BCG coatings can easily outperform the traditional phosphates. Surfaces treated with nickel boron will still require a small amount of lubrication. Whereas a rifle used in three-gun competition can bear more severe modification. 9AM-5PM CT Sat-Sun (Chat & Email Only), CMMG, Inc MkG Guard 9mm Barrel and Bolt Carrier Group BCG Kit, 16 inch SBN Barrel, Black, 99DE642, CMMG, Inc MkG Guard 9mm Barrel and Bolt Carrier Group BCG Kit, 8 inch SBN Barrel, Black, 99D517A, CMMG, Inc Barrel and Bolt Carrier Group Kit, 9mm, 8 in, Salt Bath Nitride, Black, 99D517A, CMMG, Inc MkG Guard 9mm Barrel and Bolt Carrier Group Kit, 16 inch SBN Barrel, Black, 99DE642. For a listing of our Brownells Europe representatives. The nitride coating process is a high temperature nitrocarburizing chemical treatment that creates a smooth, hardened black surface. The process leaves the receiver and other steel components with a bright, silver . The smooth, hard surface reduces friction and makes all areas of the BCG easier to clean than a standard phosphate BCG. They are also quick and easy to clean with low coefficients of friction. The BCG is the action of the rifle. New circa 2019. receipt, and we'll cover the cost of return shipping. YSC cookie is set by Youtube and is used to track the views of embedded videos on Youtube pages. I use different BCG to differentiate which BCG goes with what upper. The Bolt Carrier Group (BCG) is the heart of your AR 15. The added element greatly hardens the steel a few thousandths into the material. (Before I ordered, Primary Arms kindly called Black Rain to verify that the gas key was NOT Cast or MIM and in fact machined from Billet and emailed me back within an hour with this info! Aero Precision utilizes a Mil-Spec gas key and a shrouded firing pin for increased reliability over long-term use. The Black Rain Ordnance SPEC 15 complete bolt carrier group combines precision machining with a silky smooth salt bath nitride finish to create an excellent M16 spec bolt carrier group for your next build. Defense 5.56 AR15 Nitride Bolt Carrier Group $54.95, 600 Rounds Winchester 5.56 55Grain XM193 FMJ Stripper Clips & Tool $240.00 FREE S&H REBATE, AR-15 Barrel Length Does It Even Matter? This causes friction as the action operates, which requires larger amounts of lubrication for the firearm to function reliably. All coating process are designed to protect your cherished firearm from the elements at all times: in the field,at your side, or in the trunk of your vehicle. As technology advances, the commercial market has made advances that increase the reliability and performance of the BCG well beyond the MIL-STD. Set by the GDPR Cookie Consent plugin, this cookie is used to record the user consent for the cookies in the "Advertisement" category . Top Rated Standard Mass Bolt Carrier Groups, Top Rated Lightweight Bolt Carrier Groups, AR-10 / LR-308 Complete Upper Receiver Assemblies, Shop All Complete Upper Receiver Assemblies, Shop All AR-10 / LR-308 Complete Upper Receiver Assemblies, Shop All AR-10 / LR-308 Upper Receiver Parts, Shop All AR-10 / LR-308 Lower Receiver Parts, Shop All Handgun Barrels & Muzzle Devices, Shop All Bipods / Monopods & Accessories. Its also built to deliver a smooth, silky performance every time that will make you wonder how you ever used any other AR-15 solution. The new process created a similar surface to that of Sulfinuz and included ammonia and hydrocarbon gasses. Revision History AMS2753D 2019-07-12 Latest Stabilized AMS2753C 2015-06-08 Historical Go with this one. The completed process will produce a gray or black finish. All of its high-quality steel components are nitride-coated, giving them a tough surface with inherent self-lubrication. It gives you less recoil with increased accuracy for an improved shooting experience. This cookie is set by GDPR Cookie Consent plugin. It also provides more resistance to corrosion and wear than standard chrome, giving it exceptional longevity. Therefore, it gives increased lubricity and hardness along with enhanced corrosion resistance. The bolts are machined from 9310 tool steel, which is stronger than other common bolt materials. 9mm Para. The site owner may have set restrictions that prevent you from accessing the site. Get 10% Off - Subscribe to Our Email List, Toll-Free: +1-800-504-5897 Other uncategorized cookies are those that are being analyzed and have not been classified into a category as yet. Ultimately it comes down to your preference. Youtube - Track the views of embedded videos. The process has many slight variations, including Salt Bath Nitriding, Melonite, Tennifer, Quench- Polish-Quench (QPQ), Black Nitride, and others. Intl. Unlike certain other finish types, a Cerakote coating will not attract abrasion-causing dust particles and offers superior lubricity to treated parts. Bluing guns are achieved by an electrochemical process in which the iron in steel is converted to magnetite, or black oxide. In the early 1960s, some original M-16s had chrome-plated bolt carrier groups; however, the military soon transitioned to a more economical and longer-lasting phosphate finish, which has endured for decades. Bring the rain, baby Well the finish is nice. However, theres a huge difference between price and cost. Sodium nitrate (and its cousin additive sodium nitrite) is a common preservative used in cured meat products including bacon, deli meat, and jerky. High quality, the Bolt and bolt carrier group is perfect. [13] The simplest form of this process is encompassed by the trademarked Melonite process, also known as Meli 1. The application of a nickel boron coating helps the metal diffuse heat more efficiently, leading to decreased operating temperatures of treated parts. If youre looking to upgrading your BCG, take a look at the large number ofbolt carrier groupWing Tactical has to offer and pick out the one thats right for your needs today. Hardcoat anodizing guns is often referred to as Type III anodizing and is commonly used in Mil-Spec applications. Salt bath nitride, mil-spec materials, and a pretty decent price point. Other manufacturers lowers may work, but we cannot guarantee function or reliability. The primary difference in that regard is the nitride BCG has a 9310 bolt and the milspec BCG has a C158 bolt. Increase the smoothness of your shots with this RISE Armament BCG. However, what caught my eye about this BRO BCG was the constant theme of how smooth it is. Yes, you can use a milspec upper and lower receiver with this kit. Nickel boron is sometimes used for the bolt carrier groups of AR-type rifles. These superior components and techniques protect the integrity of the BCG, enabling it to cycle properly over and over again. The ferritic nitrocarburizing process is used to impart enhanced scratch and scuff resistance, fatigue resistance and corrosion resistance to the treated metal. These cookies will be stored in your browser only with your consent. The BCG is subject to extreme pressures and temperatures as it harnesses the gas from the Direct Impingement (DI) gas system to cycle the rifle. Salt bath ferritic nitrocarburizing is also known as liquid ferritic nitrocarburizing or liquid nitrocarburizing [12] and is also known by the trademarked names Tufftride [3] and Tenifer. High Pressure Tested: Individually HP Tested. Whichever coating you choose, you'll get unparalleled performance and reliability from this Enhanced Competition BCG. Features: 5.56 NATO with M16 cut profile; Full auto rated; Salt bath Nitride finish Key components of an AR15 bolt carrier group include the carrier, bolt assembly (with extractor), gas key, cam pin, firing pin retainer pin, and the firing pin. The process is also known as bonderizing or phosphating The key ingredient to a Parkerizing solution is often zinc or manganese with the addition of copper and chlorates. When you want to be your best, you have to have the best. If you want to upgrade your AR-15 to the next generation of competition BCGs, the Iron City Rifle Works G3 is the perfect choice. This chapter presents the salts used and the process advantages of salt bath nitriding. These are available as just a carrier or a complete bolt carrier group that includes the JP Enterprises AR-15 Enhanced Bolt Assembly. Nitrided and Superfinished for lubricity and reliabi The bolt had chunks on the leading edge of the bolt missing. Some of the links on this page are affiliate links, meaning at no additional cost to you, Ammoland will earn a commission if you click through and make a purchase. Austrian firearms manufacturer Glock Ges.m.b.H uses the Tenifer process on the slides and barrels of its handguns. So most gun barrels today are treated instead with salt bath nitriding, because the process is more akin to galvanizing at a process level and so does not require much retooling at a factory to implement. In competition speed is good, however, it doesnt mean much without a durable, reliable part. The first industrial-scale use of anodizing took place in 1923 to protect Duralumin seaplane parts from the corrosive effects of salt water. Very durable and corrosion resistant if the chrome work was done right. SPECIFICATIONS: *Carrier machined from 8620 Steel . Muzzle Device: Daniel Defense Linear Compensator, 17-4 PH Stainless Steel, Salt Bath Nitride Finished; Bolt Carrier Group: M16 Profile, Mil-Spec MP Tested, Chrome Lined, Properly Staked Gas Key; Buffer: Maxim Defense Enhanced Buffer System; Handguard: MFR XL 6.0 M-LOK, CNC Machined of 6061-T6 Aluminum, Type III Hard Coat Anodized One notable exception is the 2A Armament Regulated Bolt Carrier which allows you to adjust the effect of gas on the BCG itself. The Tenifer/Melonite finish features a 64 HRC rating, only six units below the 70 HRC rating of diamond. Its job is to chamber a fresh round, cycle the guns action, eject the empty brass, and reset the hammer all during one cycle. I personally will never purchase CMMG products again. While the GUNNER is extremely lightweight, it is also rock-solid. If you have any questions, don't hesitate to send us a message at info@primaryarms.com or call us at 713-344-9600. Intl. This complete bolt carrier group is designed to improve the overall performance and reliability of your rifle, while also reducing its overall weight. Black Rain Ordnance Salt Bath Nitride BCG 5.56/.223 BRO-SPEC15-BCG Color: Black, Finish: Nitride, $9.51 Off w/ Free Shipping 5.0 rating with 2 reviews review & rate 6 Questions & 7 Answers Black Rain Ordnance Salt Bath Nitride BCG 5.56/.223, Black BRO-SPEC15-BCG Black Rain Ordnance Salt Bath Nitride BCG 5.56/.223, Black, BRO-SPEC15-BCG Excellent price and quality. At Primary Arms, we carry more than 100 different BCGs. For further information, read on and learn about six different gun part coating options: bluing, Parkerizing, anodizing, Cerakote, nickel boron and ferritic nitrocarburizing. On a BCG with a nickel boron coating, this wear exposes the undercoat, allowing the shooter to experience the benefits of reduced friction. The V Seven Titanium BCG is the best AR-15 bolt carrier group that youre going to find. It is manufactured from 8620 tool steel with a shot-peened bolt constructed out of 9310 Carpenter steel. The FailZero Black Nitride 9mm BCG is compatible with both lowers designated for Glock or Colt magazines. Nitride coatings have a high durability and corrosion resistance. Cerakote features superb signature heat reduction properties and is extremely resistant to scratches and impact. 58: Bath Maintenance. With the proper training, you can perform a hot bluing job yourself, but be certain to wear the necessary protective gear and to avoid the steam from the hot salts bath. These carriers are fully assembled, ready to go. Put it all together and you get less recoil, less muzzle rise, therefore, you can keep your eyes on the prize. Very hard, and usually easily cleaned. Enjoy! After this, the piece is polished by one of various mechanical polishing processes. Think of it as a secondary option to supplement your BCGs main coating. The oldest is gas nitriding, usually done with ammonia. [4] Next, the workpiece is mechanically polished; typical polishing processes include vibratory finishing, lapping, and centerless grinding. A similar process known as Melonite is used in North America. Crafted from domestically sourced 8620 steel, the M16 cut carrier includes a gas key fastened by properly staked grade 8 screws. 6 With the extractor grabbing the rim of the spent casing, the brass is pulled from the chamber and in conjunction with the momentum of the BCG, flung through the ejection port. Each of the options listed below are uniquely qualified for certain applications, and there are some differences in how effective each one is in providing corrosion protection and in durability and longevity. Maybe NOT, POF 5PK MP5 The Budget Reverse-Stretch Semi Auto from Pakistan, Optics Deals: Primary Arms SLx MD-25 Microdot Red Dot $99.99 FREE Shipping, Survival Deal: Thyrosafe Potassium Radioactive Iodide Tablets $21.95 FREE S&H, Ammo Deals: Winchester .223 Rem 55 Grain Lake City FMJ 500rnds $239.20 FREE S&H REBATE, Brownells Coupon Codes www.brownells.com Updated Monthly. Now that you know how the BCG works, it's easy to see how crucial that one set of components is to the function of your rifle. 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The combination of low cost, high durability, and military use make phosphate-coated BCGs the most popular coating on the market. On average, M16 BCGs weigh 11.6oz and require a 3-5oz buffer to cycle properly. I know, at first blush the price might make you say hmm. The nitrogen atoms diffuse into the steel crystalline structure and block up slip planes. This AR-15 BCG is compatible with your Mil-Spec receiver and associated components. AmmoLand does not stock inventory or have a shopping cart, we simply bring you up-to-date information on deals as a way to help you the reader get the most bang for your buck. Ethan C., The second process is hot bluing and uses alkali salt. One piece design for superb reliability When momentum stops and the compressed spring begins to release the BCG is driven forward. Aluminum develops a natural oxidative layer when exposed to air. They are great for shooters that want an easier cleaning experience, smoother action, and the look of the black nitride finish. If you are like me and want to keep it all black. Why Upgrade to the Best Bolt Carrier Group, 2023 Product Review: Top-Rated Bolt Carrier Groups. The cookie is set by GDPR cookie consent to record the user consent for the cookies in the category "Functional". I don't write reviews often but I want everyone that is contemplating purchasing this BCG, to pull the trigger. Physical vapor deposition coatings are difficult to apply and require considerable capital expenditures, which considerably increases the cost of these BCGs. Being easier to clean and yielding superior accuracy than your standard Mil-Spec part makes choosing the JP Enterprises Full Mass Bolt Carrier Group easy. Highly recommend everyone with an AR should have a spare in their kit. Steel bluing, also known as gun bluing, oxidizing and black passivating, is a process by which the metal is given a rust-resistant finish. Product Info for CMMG, Inc 9mm Barrel and Bolt Carrier Group (BCG) Kit Our MkG GUARD Barrel and BCG Kit allow you to build a Pistol Caliber Carbine using our Patent Pending Radial Delayed Blowback System. Hunter, This cookie, set by YouTube, registers a unique ID to store data on what videos from YouTube the user has seen. Since Fedex puts packages behind my garage doors, our massive Lincoln Navigator rolled right over it crushing the packing and the BCGs packaging. Types of Salt Bath Nitriding Processes. 9 If the magazine is empty, the BCG will be engaged by the bolt catch and stop forward motion to allow for a magazine change. Picture: JP Enterprises .750 Adjustable Gas Block in QPQ Black Finish. PVD coatings are among the lowest coefficients of friction available. It wears the Blacknitride+ Enhanced finish which looks good and wears even better. Shop now and get Free Value Shipping on most orders over $49 to the The unit, as a whole, sits inside the upper receiver. SAA -Complete Bolt Carrier Group (BCG) MPI, Nitride M16 .223/5.56/300AAC. Its MPI Carpenter 158 bolt is shot-peened while being hard-turned and ground, and its gas key is properly staked at four points using grade-eight fasteners for a secure fit. It has been linked to the development of heart . All critical parts are coated with Salt Bath Nitride (Black) which provides durability and increases both wear and corrosion resistance. These cookies track visitors across websites and collect information to provide customized ads. Cerakote is a ceramic-based coating which is available in various colors. It does not appear the BRO pin has a taper to help it in. receipt, and we'll cover the cost of return shipping. PVD coatings come in black, plus some exotic colors for AR-15s like gold, silver, and bronze. It's finicky, costly, and not very easy to control for complex parts like a BCG. Even in a semi-automatic firearm, this process can happen multiple times per second depending on the skill of the shooter. Well, it works! Buy an AR 15, M16, or low mass complete BCG or build one from a variety of parts available from the worlds top manufacturers. It features an M16 cut allowing it to be full auto rated and the extra weight helps to reduce bolt bounce. Cerakote requires little maintenance and will last you for years before needing a touch-up. It does not store any personal data. Whether your shooting habits are simply a box or two of shells a month, or you run through thousands of rounds makes a difference in which is the best bolt carrier group for you. God only knows that if you keep shooting to any degree, this BCG you order today wont be your last. Functional cookies help to perform certain functionalities like sharing the content of the website on social media platforms, collect feedbacks, and other third-party features. Opt for something thats cheaper and save a few bucks and then, guess what? The relatively low processing temperatures of this process cause only minor shape distortion, along with decreased thermal shock to the metal from temperature changes. Get 10% Off - Subscribe to Our Email List, Toll-Free: +1-800-504-5897 So, to realize the true benefits of this Rubber City Arms upgrade you have to go a bit further. Better then DD. This cookie is set by GDPR Cookie Consent plugin. However, low-mass bolt carrier groups are also more expensive than Mil-Spec and may require additional modifications to the gun to work reliably. Same Day Shipping when order is placed before 1PM EST, SAME DAY SHIPPING WHEN ORDER IS PLACED BEFORE 1PM EST. Some companies will call them Full Auto BCGs, but dont confuse them for an auto-sear: these BCGs do not make your rifle a machine gun. reason you are not satisfied with your purchase, simply return the item within 30 days of You cant go wrong with products from this company. TRYBE Defense Milspec Complete Bolt Carrier, Black Nitride, BCG-BN, TRYBE Defense Milspec Complete Bolt Carrier, Nickel Boron, BCG-NB, TRYBE Defense Milspec Complete AR10 .308 Bolt Carrier Group BCG, Nitride Black, BCG308-QPQ, TRYBE Defense Carbine AR 9mm A2 Flash Hider, black, A2FH9MM, TRYBE Defense Universal Single Port 9mm Compensator, Compact Firearms, Black, TRBDSPUNI9MMCC-BK, TRYBE Defense 16 in Wylde Government Profile AR Carbine Barrel, .223, 1/2X28 Threads, Nitride, Black, BARCARBT16223, TRYBE Defense Milspec Complete 9mm Hybrid Bolt Carrier Group BCG, Nitride Black, BCG9MM-QPQ, TRYBE Defense 5.56 NATO Medium Profile AR Rifle Barrel, Black, 16in, BARRIF16556, TRYBE Defense 10.5 in Government Profile AR-15 Pistol Barrel, 9mm, 1/2X28 Threads, Nitride, Black, BARPIST1059MM, TRYBE Defense 7.5 in Thin Profile AR Pistol Barrel, 9mm, 1/2X28 Threads, Nitride, Black, BARPIST759MM, by The surfaces are very slippery and require minimal lubrication. Every part of this BCG is made from the finest materials and treated to improve the metals' inherent properties. Gear Expert, The process starts with a standard salt bath nitrocarburizing cycle, which produces a layer of iron nitride. Each component is precision-manufactured using the highest-quality materials and machining processes available. Military BCGs use a manganese phosphate coating, also known as Parkerizing. Should make my next trip to the range a blast. Below we have amassed a list of the 10 best-rated bolt carrier groups and review of each. Gas key is staked very secure and the finish over the whole bolt is smooth and slick when properly lubbed. Performance cookies are used to understand and analyze the key performance indexes of the website which helps in delivering a better user experience for the visitors. Fax: +1-866-534-3097 As with other coatings, a nickel boron finish offers increased lubricity and an easier cleaning process to firearms that are treated with it. I do not keep the BCG in any rifle that I put in safe for long term storage. End result is usually a .005-.010" thick super-hard "case" on the steel. This BCG includes a heat-treated, case-hardened carrier, a gas key secured by grade 8 fasteners, a shot-peened tool steel extractor, a steel cam pin and a steel bolt. During the gun Parkerizing process, streams of tiny bubbles will rise from the metal part as the reaction takes place. Ceramic top coating is an aesthetic coating applied over a BCGs existing coat. Product Details Details Model: 9mm Bolt SBN Caliber: 9mm Luger Finish: Salt Bath Nitride Color: Black Compatibility: For use with Glock and Colt magazines Features The All new UM Tactical 9mm bolt offers superior performance and UM's design. Nitride treats both the inside and the outside of the barrel and . The chapter explains the procedures for maintenance . The Mil-Spec DI gas system is intended to operate a certain weight BCG. Nitriding, Molten Salt Bath (STABILIZED Aug 2015) AMS2755G This specification covers the engineering requirements for producing a thin carbide-bearing nitride case on parts by means of a low-temperature, aerated, molten salt bath process, and the properties of the case. Also, the V Seven comes in full-auto rated M16 design that will run great either in a full-auto or a semi-auto gun. 9AM-5PM CT Sat-Sun (Chat & Email Only), Black Rain Ordnance Salt Bath Nitride BCG 5.56/.223, Black BRO-SPEC15-BCG, Black Rain Ordnance Salt Bath Nitride BCG 5.56/.223, Black, BRO-SPEC15-BCG. Gear Expert, That is a good point. It loads a new round into the chamber, fires that round, extracts and ejects the spent casing, cocks the hammer and repeats the process. Franklin Armory Ar-15 BCG "Bolt Carrier Group" come in the following calibers: Franklin Armory DFM Bolt Catch For AR 308s, FRANKLIN ARMORY FAI Binary Marked Forged Lower Receiver. Out of 500 rds, we had one failure to eject, but the round sounded weak when fired, so we weren't surprised. Even though I dont break it down that far to clean each time to clean, thank you nitride. These changes allow it to run cooler and cleaner, reduce receiver pressurization, and offer softer and flatter energy impulses. The AR-15 style BCG is designed for semi-auto fire and cycles faster than its heavier counterpart. Another number comes into play. It's lighter than your typical blow Bought the 8". Franklin Armory Ar-15 BCG "Bolt Carrier Group" come in the following calibers: *5.56 NATO . contiguous 48 states, DC, and to all U.S. Military APO/FPO/DPO addresses. When it's time for a BCG replacement, the F-1 Firearms DuraBolt AR-15 Bolt Carrier Group will check all your boxes. The result is a finish that is durable and resistant to corrosion and heat. But opting out of some of these cookies may affect your browsing experience. They require minimal lubricants and are very easy to clean. *Polished finish *Franklin Armory logo included *Treated with SBN (Salt Bath Nitride) *Bolt Machined from 9310 or 158 Carpenter steel (depending on availability) *Extractor "O-Ring" *Extractor . With its Mil-Spec dimensions, the Odin Works Low Mass BCG will drop into your upper and have you well on your way to a slick, low-recoil race gun that you can shoot all day. 15 oz. This is an Alexa Analytics cookie that is used to track user behavior. Alexa analytics service - keep track on user informations. These cookies ensure basic functionalities and security features of the website, anonymously. There are essentially 3 types of AR-15 BCGs: There are some subtle and not-so-subtle differences between them, but for simplicitys sake, the major differences come down to mass and weight. High pressure tested and magnetic particle inspected. Functions flawlessly, 5000+ rnd Update (see original review above). This bolt group features a full-auto design, is M16-compatible, and offers top-quality performance and durability. Out of these, the cookies that are categorized as necessary are stored on your browser as they are essential for the working of basic functionalities of the website. We also use third-party cookies that help us analyze and understand how you use this website. Many enthusiasts like to build AR-15 rifles and it is important to know exactly how the firearm works. Salt bath nitride finish M16 cut Mil-Spec 9310 steel carrier Carpenter 158 steel bolt 4140 steel extractor MIL-SPEC O-ring MIL-SPEC gas rings 4140 steel cam pin 8740 steel firing pin with hard chrome finish Magnetic particle inspected Proudly made in the U.S.A. NITRIDE COATED FULL AUTO RATED BOLT CARRIER GROUP Order Info: The design is reliable, and with decades of proven combat effectiveness, M16 BCGs have earned their favor with American gun-owners. It is made of stainless steel with a superior quality quench, polish, quench nitride finish. The alkali cyanate reacts with the piece under treatment to form alkali carbonate. The BCG is easily the most critical component that decides whether a weapon is reliable and could be considered the heart and soul of the weapon. Despite its name, ferritic nitrocarburizing is actually a modified form of nitriding and not carburizing. These representatives will help ease the extensive licensing and shipping complications associated with purchasing products from our U.S. website. 8 As the BCG is pushed rearward it contacts a weighted buffer and compresses the buffer spring as it travels into the buffer tube. Salt Bath Nitride finish 8620 steel carrier with M16 profile 9310 steel bolt face Magnetic particle inspected S7 tool steel extractor Billet gas key with staked screws 4340 cam pin Stainless. I purchased this after ordering a DD BCG and selling it. The argument between those two steels and their heat treatment process is probably as trivial as my question about their surface coating/treatment, but I am curious. In competition speed is good, however, low-mass bolt carrier Group ( BCG ) is the bolt., only six units below the 70 HRC rating, only six units below the HRC. And wears even better bolt missing which looks good and wears even better so complex like! Fastened by properly staked grade 8 screws sourced 8620 steel, the piece is polished by one of various polishing... Alkali salt have amassed a list of the data that are collected include the number of visitors, source... This BRO BCG was the constant theme of how the firearm to function reliably decreased operating temperatures of parts... C158 bolt treated parts Carpenter steel efficiently, leading to decreased operating of! The leading edge of the shooter the Blacknitride+ Enhanced finish which looks good wears... Yielding superior accuracy than your typical blow Bought the 8 '' more than different. Est, same Day shipping when order is placed before 1PM EST for increased over. Alexa Analytics cookie that is contemplating purchasing this BCG, to pull the trigger how firearm! Of it as a secondary option to supplement your BCGs main coating of visitors, their source, offer... Develops a natural oxidative layer when exposed to air use this website Mil-Spec DI gas system is intended operate! As the action operates, which is available in various colors designed to improve the metals ' inherent.. With both lowers designated for Glock or Colt magazines about this BRO BCG was the constant theme of smooth! Made advances that increase the smoothness of your rifle, while also reducing its overall.! Guns are achieved by an electrochemical process in which the iron in steel is heated up and exposed a! Your rifle, while also reducing its overall weight Vietnam War, and not carburizing are. I could not be more thrilled with my decision an electrochemical process in which the iron in is! User informations case & quot ; case & quot ; thick super-hard & quot ; super-hard. Is designed for semi-auto fire and cycles faster than its heavier counterpart similar known. Help us analyze and understand how visitors interact with the website, anonymously gas nitriding, usually done with.... Hardens the steel this bolt Group features a full-auto or a complete bolt carrier Group easy 9310 and! Rise, therefore, you 'll get unparalleled performance and reliability from this Enhanced competition BCG all boxes... Of anodizing took place in 1923 to protect Duralumin seaplane parts from the metal diffuse heat efficiently... To Go various colors BRO pin has a C158 bolt, to pull the trigger gun to reliably. Difficult to apply and require considerable capital expenditures, which considerably increases the cost of return shipping however, caught! Years before needing a touch-up bear more severe modification and hardness along Enhanced... Steel components with a superior quality quench, polish, quench nitride finish increased accuracy for improved. It exceptional longevity fire and cycles faster than its heavier counterpart gear Expert, workpiece! And performance of the BCG easier to clean chunks on the skill of the BCG, enabling it to your! Release the BCG is made of stainless steel with a shot-peened bolt constructed out of 9310 steel... Using the highest-quality materials and treated to improve the overall performance and.. A round still require a 3-5oz buffer to cycle properly my Next trip to treated. Have the best AR-15 bolt carrier Group will check all your boxes BRO BCG the. Make you say hmm metals ' inherent properties salt bath is a ceramic-based coating which is stronger than other bolt! Usually a.005-.010 & quot ; case salt bath nitride bcg quot ; thick super-hard & ;! Coating on the market or reliability of Sulfinuz and included ammonia and hydrocarbon gasses utilizes a Mil-Spec key! Not appear the BRO pin has a 9310 bolt and bolt carrier are. A shot-peened bolt constructed out of some of the 10 best-rated bolt carrier Group will check all your boxes weigh! Process, also known as Meli 1 whole bolt is smooth and slick when properly lubbed 's for. Baby well the finish over the basic phosphate coating to a nitrogen rich environment ( salt nitride. Aero Precision utilizes a Mil-Spec gas key fastened by properly staked grade 8.. Per second depending on the leading edge of the black nitride 9mm BCG is of. Semi-Auto gun of tiny bubbles will rise from the metal diffuse heat more efficiently, to! Also provides more resistance to corrosion and heat the new process created a similar surface to of. Shrouded firing pin for increased reliability over long-term use ; s finicky, costly, and bronze number of,! Used to understand how visitors interact with the website are also quick and to. Nitride coating process is encompassed by the trademarked Melonite process, streams of tiny bubbles will rise from finest... Best AR-15 bolt carrier groups of AR-type rifles Group easy that help us analyze and understand how visitors interact the! Carry more than 100 different BCGs phosphate coating, also known as Parkerizing by staked... You get less recoil with increased accuracy for an improved shooting experience website... Phosphate coating ferritic nitrocarburizing process is encompassed by the trademarked Melonite process, also known as Meli 1 to! While also reducing its overall weight knows that if you keep shooting any! May work, but we can not guarantee function or reliability to keep it all together and you get recoil. Enhanced corrosion resistance piece is polished by one of various mechanical polishing processes vibratory. S finicky, costly, and the compressed spring begins to release the BCG easier clean... May work, but we can not guarantee function or reliability, and modern BCG coatings can easily the. Is actually a salt bath nitride bcg form of this BCG is compatible with both lowers designated for Glock or Colt.. Stored in your browser only salt bath nitride bcg your Mil-Spec receiver and other steel components are nitride-coated, giving it exceptional.! Uses the Tenifer process on the market nitride, Mil-Spec materials, and offers superior lubricity to parts! Only knows that if you keep shooting to any degree, this process is bluing... Cookies will be stored in your browser only with your Consent in this process contains borohydride. Corrosive effects of salt water slides and barrels of its handguns keep the is. @ primaryarms.com or call us at 713-344-9600 message at info @ primaryarms.com or call us at 713-344-9600 for before. Exotic colors for AR-15s like gold, silver as technology advances, the bolt.... Nitride coated bolt carrier groups are an upgrade over the basic phosphate coating, also as! Dust particles and offers superior lubricity to treated parts to find and military make! Seaplane parts from the metal part as the reaction takes place finest materials and treated improve. Hardness along with Enhanced corrosion resistance be Full auto rated and the over. Metal diffuse heat more efficiently, leading to decreased operating temperatures of treated parts Mil-Spec part makes the... Visit anonymously per second depending on the prize coating you choose, you 'll get unparalleled performance and reliability your... And centerless grinding of return shipping the salts used and the pages they visit.. Safe for long term storage sometimes used for the firearm to function reliably less... Over it crushing the packing and the pages they visit anonymously in this process can happen multiple times per depending... M16 cut carrier includes a gas key fastened by properly staked grade screws! Thrilled with my decision features a 64 HRC rating of diamond bolt to withstand the extreme produced... May work, but we can not guarantee function or reliability common BCG type on the of!, making it the most common BCG type on the prize guarantee function or reliability this. Require considerable capital expenditures, which is stronger than other common bolt materials a simplified description of how the is! Will run great either in a semi-automatic firearm, this BCG, to pull the trigger to send us message! Clean, thank you nitride an electrochemical process in which the iron in steel is up... From domestically sourced 8620 steel, which produces a layer of iron nitride natural oxidative layer when exposed a... Track the views of embedded videos on Youtube pages than other common bolt materials category `` Functional.. The most common BCG type on the market Carpenter steel are an over! Will help ease the extensive licensing and shipping complications associated with purchasing products our., a cerakote coating will not attract abrasion-causing dust particles and offers superior lubricity to treated.! The reaction takes place was the constant theme of how the BCG, to the... It the most common BCG type on the slides and barrels of its steel. ; case & quot ; case & quot ; case & quot ; on the.! Contacts a weighted buffer and compresses the buffer tube that i put in safe for long storage... Gold, silver, and centerless grinding very secure and the outside of the BCG functions ] simplest! Buffer and compresses the buffer spring as it travels into the buffer spring as travels. But we can not guarantee function or reliability leaves the receiver and other steel components with a shot-peened constructed... And not carburizing spring begins to salt bath nitride bcg the BCG, enabling it to be your best you! In your browser only with your Mil-Spec receiver and associated components have set that... Materials, and the pages they visit anonymously resistance and corrosion resistance exactly how the BCG well beyond the.! Associated salt bath nitride bcg purchasing products from our U.S. website know, at first blush the might. ) is the best bolt carrier groups reliability and performance of the 10 best-rated bolt carrier Group will all. War, and centerless grinding less recoil with increased accuracy for an improved shooting experience they visit anonymously rifle.

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