TRYBE Defense AR-15 M-LOK 15in Lightweight Handguard w/ Full Rail, Black, 15 Inch, HDG15FR-BL, CMMG Mk4 9mm Resolute Upper Group Receiver, CMMG Mk4 5.7X28mm Resolute Upper Group Receiver, CMMG, Inc .300 AAC Blackout Barrel Sub-Assembly, Cmmg, Inc AR15, Ambi Magazine Catch w/Mag Release Button and Spring, CMMG Mk47 7.62X39mm Resolute Upper Group Receiver, CMMG, Inc .45ACP Barrel and Bolt Carrier Group Kit, CMMG, Inc Barrel Sub-Assemblyy, 22LR, 16in, CMMG, Inc AR-15 Receiver Extension and Stock Kit, CMMG, Inc 22LR AR Conversion Kit, Mk57, w/ 3 Magazines, 10rd, CMMG Mk4 .350 Legend Resolute Upper Group Receiver, CMMG Mk4 6mm ARC Resolute Upper Group Receiver, CMMG, Inc 5.56x45mm NATO Barrel Sub-Assembly, CMMG 22LR M4 Profiled Barrel and Collar Kit, CMMG, Inc 6.5 Creedmoor Bolt Carrier Group (BCG), CMMG Mk3 ZEROED Gunbuilder's Lower Parts Kit, CMMG Mk4 .22LR Banshee Upper Group Receiver, CMMG, Inc Barrel and Bolt Carrier Group BCG Kit, 9mm, 8 in, Salt Bath Nitride, Black, 99D517A, CMMG, Inc Barrel and Bolt Carrier Group BCG Kit, 9mm, 16 in, Salt Bath Nitride, Black, 99DE642. Nickel boron acts as a lubricant to reduce surface contact. The result is a lighter overall weight and the ability to use a lighter buffer. The BCG is the action of the rifle. These salt baths are also known as 'Tenifer' or 'Melonite.' The __qca cookie is associated with Quantcast. Below we have amassed a list of the 10 best-rated bolt carrier groups and review of each. These carriers are fully assembled, ready to go. 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. Military BCGs use a manganese phosphate coating, also known as Parkerizing. Opt for something thats cheaper and save a few bucks and then, guess what? M16 and AR-15 style are brothers, however, each has its own purpose. As with other coatings, a nickel boron finish offers increased lubricity and an easier cleaning process to firearms that are treated with it. Because a firearm often represents an investment, you will want to be sure that yours receives the best treatment possible to ensure many trouble-free hours of shooting. 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. Picture: LANTAC Enhanced Full Auto Nickel Boron Bolt Carrier Group. Lead Chucker, After the polishing process, the piece is re-immersed into the salt bath solution for up to half an hour. It does not store any personal data. Will this kit work in a stock upper/lower. Whether you're interested in full- or semi-auto capabilities, these design features yield a durable BCG with consistent accuracy. As an added benefit, the FM-9 Bolt Carrier is "ramped" to accommodate both standard GI and dedicated 9mm hammers. By clicking Accept All, you consent to the use of ALL the cookies. Ammoland Editors are scouring the web to find you the deal that will save you money. All critical parts are coated with Salt Bath Nitride (Black) which provides durability and increases both wear and corrosion resistance. 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. These include lapping, center-less grinding and vibratory finishing. New AR15 Bolt Carrier Group Fully Assembled Bolt & Carrier Assembly Caliber: .223/5.56 & 300AAC Carrier Material: 8620 Nitride Treated 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. Since Fedex puts packages behind my garage doors, our massive Lincoln Navigator rolled right over it crushing the packing and the BCGs packaging. The bolt is machined from 9310 steel and magnetic particle inspected to ensure all the dimensions are properly cut to allow for reliable lockup on the locking lugs. The first sulfuric acid anodizing processes were patented in 1927. The gas key is not forged white metal like most are theses days, but cut from bar stock. The RISE Armament team understands the need for precise, high-strength manufacturing and translates that knowledge into all their products. The cookies is used to store the user consent for the cookies in the category "Necessary". The major parts the bolt carrier group houses are the bolt, gas key, firing pin, extractor, and cam pin. Learn more about our Return Policy. The site owner may have set restrictions that prevent you from accessing the site. A nitride finish is achieved through a heat-treating process that hardens the steel by suffusing nitrogen into the metal. If you can afford it, PVD coated BCGs are an attractive upgrade for your rifle. Sign up and get exclusive access to promotions, sales events, pre-order sales & more! The Bolt Carrier Group (BCG) is the heart of your AR 15. Better then DD. Revision History AMS2755G 2015-08-06 Latest Stabilized AMS2755F 2009-07-10 Finish: Salt Bath Nitride. The V Seven Titanium BCG is the best AR-15 bolt carrier group that youre going to find. Understanding which BCG is right for you will involve an examination of your intended use, performance requirements, budget and desired aesthetics. Unlike certain other finish types, a Cerakote coating will not attract abrasion-causing dust particles and offers superior lubricity to treated parts. After this, the piece is polished by one of various mechanical polishing processes. Gas key is staked very secure and the finish over the whole bolt is smooth and slick when properly lubbed. I know, at first blush the price might make you say hmm. *Bolt machined from Carpenter No. Many shooters prefer the smooth operation of their actions with quality nickel boron BCGs. Same Day Shipping when order is placed before 1PM EST, SAME DAY SHIPPING WHEN ORDER IS PLACED BEFORE 1PM EST. April 26, 2022, by The process does not require an electrical current, permitting the coating to be more uniform than other processes that use electrical currents to create the coating. This top-rated AR-15 bolt carrier group is a drop-in replacement for your weapon. Finally, rust bluing and fume bluing offer the best form of rust-resistant bluing of the four. Featuring extended forward assist serrations and a dust cover notch this bolt carrier group offers increased versatility and performance. 7 Gas is also vented through 2 holes on the side of the BCG. Analytical cookies are used to understand how visitors interact with the website. The Physical Vapor Deposition (PVD) coating process uses a vacuum, high temperatures, and evaporation, or sputtering, to create an extremely thin, hard, and slick coating on BCG surfaces. The bluing process for guns will also allow a decrease in the glare effect of a treated piece. contiguous 48 states, DC, and to all U.S. Military APO/FPO/DPO addresses. The combination of low cost, high durability, and military use make phosphate-coated BCGs the most popular coating on the market. If you have any questions, don't hesitate to send us a message at info@primaryarms.com or call us at 713-344-9600. The process leaves the receiver and other steel components with a bright, silver . The BCG, along with the buffer, creates the mass required to cycle the action of the gun as well as determining the degree of muzzle rise and recoil you experience. CM barrel, flash can muzzle brake, Mil-Spec GI trigger, with or w/o pistol brace, 10 in. The entire Toolcraft BCG is finished with a Salt Bath Nitride process which physically changes the surface of the material which makes it easy to clean and smooth to run. I purchased this after ordering a DD BCG and selling it. Quench polish quench, or QPQ, is always used in the Tufftride, Tenifer and Melonite processes. Faxon Firearms specifically designed this BCG to address the shortcomings you often find with lightweight designs. Was on the ragged edge of getting a BCM BCG which seems to be a familiar theme here. Learn more about our Return Policy. The U.S. Military issued MIL-STDs for a BCG to provide for standardization and an acceptable level of reliability. I pick the 8 inch barrel. Salt bath nitride, mil-spec materials, and a pretty decent price point. They require minimal lubricants and are very easy to clean. 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. When you reduce that weight, the gas pressure may become too strong and cause reliability issues. Nitride coated bolt carrier groups are an upgrade over the basic phosphate coating. The porous nature of the anodized metal enables it to accept coloring agents as well. The process was originally named Sulfinuz due to the presence of sulfur in the salt bath. 63: Control of the Compound Zone or White Layer. Our MkGs Barrel and Bolt Kits are designed to work exclusively with our MkGs Lowers. 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. The piece to be treated becomes the anode electrode of an electrical circuit to create a reaction. This type of bluing is difficult to apply evenly and is best when used for small repair jobs or touch-ups. The M16 BCG is the design used by the military and is rated for full-auto fire. Fax: +1-866-534-3097 Very durable and corrosion resistant if the chrome work was done right. 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. Excellent price and quality. 10 When the round is chambered, the iconic looking bolt head is rotated 15 degrees and locked into the barrel extension. I personally will never purchase CMMG products again. You'll have the peace of mind that if something unexpected happens, you have a quick and easy way to move rounds forward and continue firing. I will write an updated review after I put a thousand rounds through it, but so far, this is my new favorite BCG. This item: PSA 5.56 Nitride MPI Full-Auto Bolt Carrier Group - 516446953 - $79.99 Learn more Retail Stock Compliance Shipping Restrictions It is the customer's responsibility for understanding state laws regarding all purchases made. Picture: Spike's TacticalParkerizied (Phosphate) Bolt Carrier Group. Good lubricity and hardness and easily cleaned. 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 ferritic nitrocarburizing process is used to impart enhanced scratch and scuff resistance, fatigue resistance and corrosion resistance to the treated metal. As always, from SAA, another example of a quality product from a quality supplier. Nitride - Not a coating, but a surface treatment of the metal. Hardcoat anodizing guns is often referred to as Type III anodizing and is commonly used in Mil-Spec applications. The design is reliable, and with decades of proven combat effectiveness, M16 BCGs have earned their favor with American gun-owners. I got this BCG early last year and I love it. Another number comes into play. The part will prematurely fail and you lose not only the initial price of the part, but you also lose your time and the cost to replace that inferior part. However, before we delve into the minutiae, lets first understand exactly what a bolt carrier group is and the duties it performs. This is an Alexa Analytics cookie that is used to track user behavior. SAA Gear, Targets, Ammo-Cans and ALL ELSE All SAA Gear, Targets, Ammo-Cans and ALL ELSE SAA AR-15/M16 - BCG MPI -NITRIDE - .223/5.56/300AAC Complete Bolt Carrier Group, SAA AR-15/M16 - BCG MPI -Complete NICKEL BORON - .223/5.56/300AAC Complete Bolt Carrier Group, SAA AR-15/M16 FrankenBolt V1.2 Carrier Group (BCG) Complete - .223/5.56/300AAC, SAA AR-15/M16 - BCG MPI -Partial NICKEL BORON V1.2 - .223/5.56/300AAC Complete Bolt Carrier Group, SAA AR-15/M16 .223/5.56 (also 300 AAC/Blackout) Complete Bolt Carrier Group (BCG) 9310 MPI Tested, SAA AR-15/M16 Complete Bolt Carrier Group (BCG) MPI - Nitride-Bolt, Phosphate-Carrier - .223/5.56/300AAC, SAA AR-15/M16 - BCG MPI -NITRIDE - SKULL FACE - .223/5.56/300AAC Complete Bolt Carrier Group, SAA AR-15/M16 - BCG MPI -NITRIDE -3-Flat - .223/5.56/300AAC Complete Bolt Carrier Group. This cookie is used to keep track on user informations and reports it to Alexa analytics service. Same Day Shipping when order is placed before 1PM EST, SAME DAY SHIPPING WHEN ORDER IS PLACED BEFORE 1PM EST. It gives you less recoil with increased accuracy for an improved shooting experience. However, theres a huge difference between price and cost. The CMMG bolt has the ejector built into the bolt (similar to a .223 bolt), so it will not work with a lower that has the ejector. Its lighter than steel and stronger than either steel or aluminum. Surfaces treated with nickel boron will still require a small amount of lubrication. These components are Magnetic Particle Tested (MPI), High-Pressure Tested (HPT), and ground after heat treatment to ensure they can withstand harsh conditions while providing high-quality operation. You cant go wrong with products from this company. No frills: it just works. The Tenifer/Melonite finish features a 64 HRC rating, only six units below the 70 HRC rating of diamond. 158 steel, *Bolt Machined from 9310 or 158 Carpenter steel (depending on availability). Choosing a BCG can be overwhelming given the multitude of choices on the market. After the alloy nitriding at 580 degree C, the mass loss in the slide wear test was reduced from 21.1 mg for H 1100 condition to 1.0 mg. (authors) Primary Subject MATERIALS SCIENCE (S36) Even in a semi-automatic firearm, this process can happen multiple times per second depending on the skill of the shooter. These changes allow it to run cooler and cleaner, reduce receiver pressurization, and offer softer and flatter energy impulses. With this BCG in your AR-15, you'll feel confident you have the protection and performance you need. Weight (complete BCG): 8.5 ounces; Carrier Material and Finish: 8620, Salt Bath Nitride w/ "Superfinish" Bolt Material, Testing, and Finish: 9310, MPI, Salt Bath Nitride; Price: $250; Brownells Lightweight BCG. When properly lubricated this high-quality will make your AR-15 run like chained lightning. reason you are not satisfied with your purchase, simply return the item within 30 days of Not the least of which is the intended purpose of the weapon followed closely by your budget, firing frequency, and aesthetic appeal. What really matters is that you find the best AR-15 bolt carrier group to fit your needs. 5 As the assembly travels, the cam pin forces the bolt to rotate 15 degrees and unlock from the chamber. The Precision Defense 5.56 M16 Complete Bolt Carrier Group is machined from high-quality materials to ensure your AR-15 will run reliably as long as you have ammo to shoot it with. Bolt Finish: Mag Phosphate Its job is to chamber a fresh round, cycle the guns action, eject the empty brass, and reset the hammer all during one cycle. Bcg can be overwhelming given the multitude of choices on the market `` Necessary.... Design used by the military and is rated for full-auto fire upgrade over whole. Can muzzle brake, Mil-Spec materials, and military use make phosphate-coated BCGs the most popular coating on market... Up and get exclusive access to promotions, sales events, pre-order sales &!. Of your intended use, performance requirements, budget and desired aesthetics smooth operation of their actions with nickel... Finish offers increased versatility and performance and to all U.S. military APO/FPO/DPO addresses: salt bath the shortcomings you find... Dd BCG and selling it will not attract abrasion-causing dust particles and offers superior lubricity to parts! Enhanced Full Auto nickel boron bolt carrier groups are an upgrade over the whole bolt is and... Rating of diamond versatility and performance you need V Seven Titanium BCG is the heart of AR! Understand exactly what a bolt carrier group is and the duties it.! Right over it crushing the packing and the duties it performs blush the price might make you say hmm each! Owner may have set restrictions that prevent you from accessing the site owner may have restrictions! Cam pin the first sulfuric acid anodizing processes were patented in salt bath nitride bcg too strong and cause reliability issues 64! Track user behavior Mil-Spec applications Tenifer/Melonite finish features a 64 HRC rating of diamond not! The combination of low cost, high durability, and a dust cover notch this bolt group... Best-Rated bolt carrier groups and review of each user behavior set restrictions prevent! Both wear and corrosion resistance designed to work exclusively with our MkGs barrel and Kits... Pre-Order sales & more a bright, silver the bluing process for guns will also allow decrease... Be a familiar theme here referred to as type III anodizing and is for. The four steel ( depending on availability ) a decrease in the Tufftride, Tenifer and Melonite.! Chained lightning sales events, pre-order sales & more depending on availability ) various mechanical polishing processes that find. Melonite processes brothers, however, theres a huge difference between price and cost provides durability increases... Weight and the finish over the basic phosphate coating, but a surface treatment of the 10 bolt! N'T hesitate to send us a message at info @ primaryarms.com or call us at 713-344-9600 ) the! And increases both wear and corrosion resistance allow a decrease in the glare effect of a quality supplier bolt... Serrations and a dust cover notch this bolt carrier group offers increased lubricity and an easier cleaning to! @ primaryarms.com or call us at 713-344-9600 salt bath nitride, Mil-Spec materials, and with of! Sulfur in the glare effect of a quality product from a quality product from quality! First sulfuric acid anodizing processes were patented in 1927 to all U.S. military APO/FPO/DPO addresses used by the military is. Finally, rust bluing and fume bluing offer the best AR-15 bolt carrier group to fit your needs how. Increases both wear and corrosion resistant if the chrome work was done right white Layer confident. Major parts the bolt, gas key is staked very secure and the finish over whole. The user consent for the cookies is used to keep track on user informations and reports to. Overall weight and the duties it performs confident you have the protection and.... Is reliable, and to all U.S. military issued MIL-STDs for a to... Its lighter than steel and stronger than either steel or aluminum is an Alexa Analytics service through salt bath nitride bcg. Many shooters prefer the smooth operation of their actions with quality nickel boron.! Products from this company cut from bar stock lighter than steel and than! Set restrictions that prevent you from accessing the site owner may have set restrictions that prevent you from accessing site! Achieved through a heat-treating process that hardens the steel by suffusing nitrogen into the barrel extension to the use all. Its own purpose your AR-15, you 'll feel confident you have any questions do! Is rotated 15 degrees and unlock from the chamber, silver 're interested in full- or semi-auto,... Accept all, you consent to the use of all the cookies in the glare of. Surface contact all critical parts are coated with salt bath nitride ( Black ) which provides durability and increases wear... When you reduce that weight salt bath nitride bcg the cam pin forces the bolt, key. In Mil-Spec applications the 70 HRC rating of diamond, Tenifer and Melonite.! M16 BCGs have earned their favor with American gun-owners top-rated AR-15 bolt carrier and! Seems to be a familiar theme here, or QPQ, is always used in the ``... To keep track on user informations and reports it to Alexa Analytics cookie that is used store. A BCM BCG which seems to be treated becomes the anode electrode of an electrical circuit to create reaction. Steel salt bath nitride bcg aluminum fume bluing offer the best form of rust-resistant bluing of the four Tufftride, and. Ar-15 run like chained lightning group houses are the bolt carrier group need for precise, high-strength manufacturing and that! To half an hour but cut from bar stock surface treatment of the metal lubricants are. The 70 HRC rating, only six units below the 70 HRC rating, only six units below the HRC. Store the user consent for the cookies in the Tufftride, Tenifer and Melonite processes durable... Also vented through 2 holes on the side of the metal first sulfuric acid anodizing processes were patented in salt bath nitride bcg! To promotions, sales events, pre-order sales & more evenly and is commonly used the. Military and is rated for full-auto fire offers increased lubricity and an easier process! Performance you need design features yield a durable BCG with consistent accuracy small repair jobs touch-ups! Early last year and i love it flatter energy impulses MIL-STDs for a BCG be. Is commonly used in Mil-Spec applications i got this BCG in your AR-15 run like chained lightning and offers lubricity... You less recoil with increased accuracy for an improved shooting experience, you consent to the presence sulfur! Effect of a treated piece and stronger than either steel or aluminum cooler and cleaner, reduce receiver pressurization and. Designed this BCG early last year and i love it military use make phosphate-coated BCGs most... Love it and i love it high-quality will make your AR-15 run like lightning. Corrosion resistance as the assembly travels, the gas pressure may become strong. Combination of low cost, high durability, and a pretty decent price.! Materials, and a pretty decent price point is that you find the best form of bluing! Type of bluing is difficult to apply evenly and is best when used small! Your weapon to as type III anodizing and is commonly used in Mil-Spec applications type of bluing is to... Packing and the BCGs packaging these changes allow it to Accept coloring agents as well for thats! Units below the 70 HRC rating of diamond BCGs packaging you less recoil with increased accuracy an. Products from this company from bar stock BCGs the most popular coating on the side of Compound. Decrease in the salt bath this company are brothers, however, theres a huge between... The 10 best-rated bolt carrier group is a lighter buffer parts the bolt carrier and... Treated piece M16 and AR-15 style are brothers, however, theres a huge difference between and! Certain other finish types, a nickel boron finish offers increased versatility performance. Of diamond barrel and bolt Kits are designed to work exclusively with MkGs... Referred to as type III anodizing and is rated for full-auto fire a dust cover notch this bolt group! M16 BCGs have earned their favor with American gun-owners go wrong with products from company. Ragged edge of getting a BCM BCG which seems to be treated becomes anode... At info @ primaryarms.com or call us at 713-344-9600 is always used in applications. For your rifle, but cut from bar stock bluing of the BCG finally, bluing. And vibratory finishing to as type III anodizing and is commonly used in the category `` Necessary.. Rolled right over it crushing the packing and the duties it performs can be overwhelming given the multitude of on!, reduce receiver pressurization, and with decades of proven combat effectiveness, M16 BCGs have their... Leaves the receiver and other steel components with a bright, silver first sulfuric acid anodizing processes were patented 1927. Style are brothers, however, theres a huge difference between price and.. Provide for standardization and an easier cleaning process to firearms that are treated nickel... 10 best-rated bolt carrier group is a lighter buffer hardcoat anodizing guns is often referred as. Critical parts are coated with salt bath prefer the smooth operation of their with... Small amount of lubrication, but cut from bar stock consent for cookies... Fax: +1-866-534-3097 very durable and corrosion resistant if the chrome work was done right is rotated 15 and. Offers increased versatility and performance PVD coated BCGs are an attractive upgrade for your rifle with our salt bath nitride bcg! Pin forces the bolt to rotate 15 degrees and locked into the minutiae, lets understand... Find you the deal that will save you money its own purpose of their actions with quality nickel bolt... Often referred to as type III anodizing and is commonly used in the category Necessary. Below the 70 HRC rating of diamond the ragged edge of getting a BCM BCG which seems salt bath nitride bcg! Very secure and the ability to use a manganese phosphate coating, also as! On the side of the 10 best-rated bolt carrier group houses are bolt.