Check out this detailed discussion to get better insights about this topic, and also take a look at the best 9mm BCGs that are prevalent today. GOLD Parts. A normal AR-15 BCG is made from several different parts, but 9mm BCGs are normally made from basically one piece of steel. At only 7.9 ounces, it's fairly light and easy to tune your AR gas system around. This might be something to be made aware of. Regular Price: $184.99. The most common is Titanium Nitride (TiN) while PVD and CVD are processed to apply allow on bolt carrier groups. Aside from the easy installation process and quality construction, most users are able to fire off hundreds of rounds without a single reliability issue. NBS .223/5.56 Bolt Carrier Group Black Nitride, AO Precision True Mil-Spec SP/HPT/MPI 5.56 Bolt Carrier Group, AO Precision C158 SP/HPT/MPI 5.56 Bolt Carrier Group Black Nitride, NBS .223/5.56/300 BLK Complete Bolt Carrier Group Nickel Boron, Toolcraft .223/5.56/300 BLK M16 Profile Bolt Carrier Group Black Nitride, Anderson .223/5.56 M16 Bolt Carrier Group Black Nitride, NBS .223/5.56/300BLK M16 Profile Left-Handed Bolt Carrier Group Black Nitride, Dirty Bird AR-15 5.56/.223/300BLK Bolt Carrier Group Polished Nickel Boron, Aero Precision 5.56 Bolt Carrier Group Black Nitride, NBS Lightweight .223/5.56 Bolt Carrier Group Black Nitride, Dirty Bird Industries Enhanced Bolt Carrier Group .223/5.56, NBS 9mm Bolt Carrier Group Black Nitride, Bootleg Inc Four Position Adjustable AR-15 Bolt Carrier Group, Toolcraft 9mm Bolt Carrier Group Gen 2 Black Nitride, Faxon Firearms 5.56/300 BLK M16 Bolt Carrier Group Nitride, Microbest Mil-Spec C158 HPT/MPI 5.56 Bolt Carrier Group Phosphate/Chrome-Lined, Dirty Bird Industries 9mm Bolt Carrier Group, Toolcraft .223/5.56/300 BLK M16 Profile Bolt Carrier Group Ion Bond DLC, Toolcraft AR-10 / 308 / 6.5 Creedmoor Bolt Carrier Group Black Nitride, Aero Precision 5.56 Bolt Carrier Group, No Logo Black Nitride, Toolcraft .223/5.56/300 BLK M16 Profile Bolt Carrier Group Nickel Boron, NBS Lightweight .223/5.56 Bolt Carrier Group Nickel Boron, Bootleg Inc AR-15 .223/5.56 Bolt Carrier Group Black Nitride, Aero Precision 5.56 Bolt Carrier Group, Complete Nickel Boron. Remember, this BCG is going to be with you for the long term. Dont ruin all that by Firearms are hot-ticket items for burglaries because they retain value. Especially if you are looking for one to install in your AR-15 pistol. Most recent buyers were looking for a reliable BCG for their AR-15 pistols. But its not as bad as you might think. Pistols will no longer ship with braces. And it has a few extra touches that make it an excellent option for both competition and tactical shooting. The Enhanced 9mm Bolt Carrier is still compatible with Colt and Glock lowers and magazines. The options are limited and good options are even rarer. 9mm AR Bolt Carrier Group feature a blow back design for use in AR9 style rifles and pistols. But folding Americas favorite rifle the AR-15 can be a little tricky. Colt magazines are easier to load, look cooler, and are metal. Some buyers were also building their pistols from the ground up and needed a functional BCG that was right out of the box. I'm Mike, one of the oldest writer of Sniper Country! That way you can use whatever mag that fits your budget or existing magazine stockpile. Where phosphate is the mil-spec. While a normal AR-15 is built with a locked breech and uses a form of direct impingement to function, an AR-9 is normally simple blow-back. As if that werent enough, this R&D Precision bolt carrier group is also super affordable. (5 reviews) Write a Review. Only 7 left in stock. Especially something that will last them for a long time. Add to Cart The item has been added. Youll want to make sure that all the parts are complete and are ready for use as soon as youve received them through shipping. Product Code: ACC-9MM-BCG. Bolt carrier groups, as weve discussed, are literally the beating heart of your 9mm AR carbine. Thats a very attractive little package right there! Made in the U.S.A - Lifetime Warranty. So it can take multiple hammer hits on a great day. But its also really rough, ugly, and harder to clean. Add to Cart. Beau has also trained with the USCCA and is a current member. The Toolcraft 9mm Bolt Carrier Group is a full-mass BCG perfect for your Blowback Pistol Carbine Caliber AR15 build. Recent buyers are able to call this a high quality and very inexpensive BCG. Best AR-15 Bolt Carrier Group Coating Options . Copyright var date = new Date(); document.write(date.getFullYear()) Delta Team Tactical. BCG Shroud, AR15.com. The bolt carrier group is also a part of the upper receiver to an AR-15. If you are looking for the perfect AR bolt carrier group for sale, Omaha Outdoors carries the 9mm, AR-10/AR-15 BCG and much more for low online prices! Without the engine, you cannot drive the car. Typically, coatings such as,Black Nitride and Titanium Nitride will help your BCG withstand corrosion and general heavy usage of the rifle. So it will be most likely used by range shooters and competitive shooters alike. This is made for shooters who want their Colt AR-15 pistol to last them many years (so long as they take great care of it). Aero's EPC-9 is a direct-blowback, semiautomatic carbine chambered in 9mm. Description. But they normally arent cheap. Nickel Boron: Literally what the name suggests, this is a coating made of Nickel and Boron (95/5%) that is then applied to the BCG using electroless. $124.99 Original price $89.99. Usually, 9mm bolt carrier groups in this price range have some kind of functional limitation. Score: 5.00 (votes: 1) Rating: 87%. So use (almost) any magazines you want. Save my name, email, and website in this browser for the next time I comment. However, not this one. Shop bolt carrier groups for AR15 and AR10. Faxon 5.56/300 BLK Gunner Light Weight Bolt Carrier Group Nitride M16 Bolt Carrier Group AR15 BCG. The Gunner BCG is made from 9310 steel and weighs 8.2 oz. We always see ourselves as fans of something that wont hit the shelves unless it passes all kinds of tests with flying colours in this Faxon Firearms 9mm. But simply picking any random BCG doesnt create a flawless AR. **NOTE: This BCG will not work if used in a standard 5.56 upper receiver . Add to cart Quick View. This BCG was made for the Colt fanatic and thats why we like it.
We carry a variety of 9mm BCG's for your AR9 build! But as far as Ive seen, almost no one HPT their 9mm BCGs. I know. Add to cart Quick View. NBS 9mm Bolt Carrier Group - Black Nitride - w/ Light Firing Pin Springs. Obviously, getting rid of the staked key would be a comfortable improvement. If your AR-15 9mm rifle needs an upgrade or if youre building one from scratch, one of these five will end up being yours to own. If youre a recoil junkie, maybe they wont be as interesting to you but for the rest of us, theyre just a lot of fun to shoot. There are very few 9mm bolt carrier groups with that sort of magazine compatibility. AR-15 9mm Bolt Nitride . One of the things that may improve is making some alterations to the size. Well also talk about what encompasses a BCG along with a brief guide on how to find one for your own 9mm. RTB is now offering our own line of .22LR parts and accessories. Its a drop-in BCG thats ready to go when you are. Features: 9310 Steel MPI Bolt .223/5.56 Caliber Mil-Spec Precision Machined 7075 Polished Aluminum Carrier Anodized Finish - Bright Blue Lightweight 5.9oz Reduces recoil / increase cycle speed . 4140 Chrome Moly. New Releases. The magic fairy dust is namely polytetrafluoroethylene you might know it by the brand name Teflon. Nothing a little testing and tweaking cant fix. Sunday: Closed, The following is a list of some of the best 9mm bolt carrier group BCGs that are currently on the market as of this writing. After serving in the military, Beau got himself even more guns. About this BCG: This BCG is an AR-15 compatible design, allowing use with 9mm Luger (9x19) cartridges. The Colt brand has long been respected by many pistol enthusiasts. His father taught him hunting, bullet casting and reloading, which lead him to develop a strong passion for guns and gun gear. Show Hide Filters. staked gas key, grade 8+ fasteners, enhanced extractor spring with oring. But if youre building your own rifle or youre interested in upgrading your current one then knowing a little about why and what the BCG does will help a lot in picking the right one for you. If youre looking for something solid and might be a direct threat to the Brownells best overall spot, the Faxon Firearms BCG might be your alternative choice if youre looking for something that is strong, reliable, and works with almost any AR-15 9mm in existence. Lots of times youll find people that can say for sure or if the manufacturer has said so themselves. They were mostly casual target shooters or competitive shooters. Manufactured from 8620 Steel and a hardened 17-4 stainless steel firing pin, this Toolcraft 9mm Bolt Carrier Group also features an M16 Style extractor and a removable counterweight. Faxon Firearms 9mm Blow Back Bolt Carrier Group . The revered AR-15 rifle can be easily converted into a 9mm caliber rifle with minimal component changes. Its made from some high-quality steel that will definitely work to your advantage if youre looking for something that is guaranteed to last you years or even decades. We always fancy ourselves as fans of something that wont hit the shelves unless it passes all kinds of tests with flying colors. View at Faxon. Home > AR Parts > AR-15 Parts >. Most of these are your pins and springs that will grip it all together. If youre looking for something solid and may be a direct threat to the Brownells best overall spot, the bolt carrier group Faxon Firearms BCG may be your other choice if youre looking for something that is strong, reliable, and goes with almost any AR-15 9mm AR bolt carrier groups in existence. For a normal BCG in a normal AR-15, we strongly recommend that you never buy one that you cant confirm as being MPI and HPT tested (more on that in a moment). AR 15 Bolt Carrier Group Parts. This BCG has that prospective. Complete, .223/5.56mm AR-15 bolt and carrier assembly comes with all the parts, fully assembled, and ready to go. However, its got more of a matte look, and feels quite similar to a phosphate finish. 9mm AR's do not need gas system parts, such as gas tubes or gas blocks because AR9's operate on a blowback system. Thats because its strong enough to handle the impact of multiple gunshots. Most recent buyers are looking for a reliable BCG for their AR-15 pistols. If youre looking for a BCG that is reliable, tough all over and is affordable for most budgets then the Foxtrot Mike might be exactly what youre looking for. A BCG is a must-have for your 9mm for whys and wherefores that are not completely optional. Either way you can't go wrong as Glocks 32 round magazine has proven to be just as reliable as Colt.
Unit Price. We will go a little deeper into what comprises a BCG in the next section. Heres the real deal though: this bolt carrier group is well-matched with Glock, Colt SMG, nitride finish, and MP5 magazines. Citadel 1911 Review: Best Budget-Friendly Pistol? our price: $219.99 . 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So always ensure that you get a trigger that has been specified to be used with 9mm AR rifles when using aftermarket triggers. This is a BCG that is more than a budget BCG option. So they want a BCG that is built to last them many years. Once installed, they tested it at the range with their AR-15 pistols. To make sure that you find the best one, weve put together a list of some of the best 9mm BCGs that are currently on the market (as of this writing). Mike has a passion for innovation and education across the industry to create great content, training, and insights from the best and brightest. Bolt Carrier Groups (BCG) & Parts - If you're building an AR, looking to change calibers, or just need to change out the BCG in your current AR, this . 6.8 Bolt Assembly (0) $53.39 On sale: $46.95 Sale. If you are currently looking for the best 9mm BCG for your AR-9 carbine, youve come to the right place. What keeps the system safe and functioning is the weight of the BCG and the spring holding it closed. These may end up matching your list of what to look for in a9mm bolt carrier groups BCG. Thats pretty amazing, right? There is no right or wrong answer here, just pick the system you like best and run with it. That said, AR-9s arent like AR-15s and their BCG is far less complex. Recent buyers were able to call this a high quality and very affordable BCG. We maintain the dual COLT/GLOCK compatible geometry, user-removable weight and full-auto compatibility while adding new and welcome features. But for 9mm BCGs, most of them simply arent MPI or HPT tested because the pressures involved are so much lower than a rifle cartridge. . Ballistic Advantage 5.56 NATO Bolt Carrier Group - Black Nitride our price: $224.99 . PVD and CVD are processes for applying an alloy on the BCG, there is a lot of technical details, but bottom line is that an alloy is turned into a vapor and applied to the BCG. Visit our 22/rimfire category today and take advantage of our lightning fast shipping! Nitride Coating: The most common upgraded coating for BCGs. While 99% of the 9mm pistol caliber carbines on the market use simple blowback to make their actions work, CMMG went a huge step further and developed a whole new way of doing things. This is where the Aero Precision EPC-9 comes in. Once installed, youll be able to give it a test drive at the range to make sure that its functioning properly. Special Price $139.99. Rated 5.00 out of 5. The JP Enterprises AR-15/M-16 BCG may just be your best BCG that you can own if youre planning on firing off a number of rounds with your AR-15 pistol calibers. Shop BCGs from WMD Guns. RUNNER-UP: Faxon Firearms - AR-15 9mm Bolt Carrier Group. Sale! The Bolt Carrier Groupaka BCG is often called the heart of the rifle, and the best Bolt Carrier Group for your AR-15 is the one that meets your needs perfectly. Super durable and resistant to almost any kind of damage 3. AR-15 Full Build Kits - $399.99 and Under, Delta Deals BCG & Charging Handle Combos Strike Industries AR-15 T-Bone Charging Handle - Black + Rise Armament Bolt Carrier Group, .223/5.56, Nickel Boron Finish, Delta Deals BCG & Charging Handle Combos Armaspec Victory AR-15 Charging Handle + Rise Armament Bolt Carrier Group, .223/5.56, Nickel Boron Finish, Delta Deals BCG & Charging Handle Combos Strike Industries AR-15 T-Bone Charging Handle - Black + RISE Armament .223/5.56 Bolt Carrier Group, Black Nitride, Mercury Precision AR 9mm Complete Bolt Carrier Group, Lakota Ops 9mm Nitride Bolt Carrier Group - Accepts Glock and Colt mags, Delta Deals Sylvan Arms 9mm Glock Magwell Conversion Block + 9mm Nitride Bolt Carrier Group + "Holy" Ambidextrous AR-15 Charging Handle, Kaw Valley Precision 9MM Blow Back Bolt Carrier Group - Glock and Colt Compatible - Add To Cart Discount, Angstadt Arms, AR-15 9mm QPQ Nitride Bolt Carrier Group - Black Finish, Delta Deals EndoMag/Magpul PMAG BCG Combo, Delta Deals AR-15 9mm BCG + Pistol Caliber AR-15 Billet Upper Receiver, Delta Deals AR-15 Sylvan Arms 9mm Magwell Adapter + United Defense 9mm BCG, Delta Deals BCG & Charging Handle Combos AR-15 9MM BCG + AR-15 Ambidextrous "Holy" Charging Handle, Faxon AR-15 Gen 2 9mm PCC Blowback Full-Mass BCG, Delta Deals BCG & Charging Handle Combos AR-15 M4 Milspec Charging Handle + United Defense Labs 9mm Bolt Carrier Group, Delta Deals AR-15 M4 Milspec Charging Handle + Lakota Ops 9mm Nitride Bolt Carrier Group, Delta Deals AR-15 Upper Build Starter Kit Featuring: Panhead AR-15 Billet Upper Receiver, 8.5" 9mm 1-10T Barrel, 9mm BCG, Mil-Spec Charging Handle, and Dust Door, Delta Deals BCG & Charging Handle Combos Geissele Automatics DDC AR-15 Super Charging Handle + RISE Armament .223/5.56 Bolt Carrier Group, Black Nitride, Delta Deals BCG & Charging Handle Combos Strike Industries AR-15 T-Bone Charging Handle - FDE + RISE Armament .223/5.56 Bolt Carrier Group, Black Nitride, Delta Deals BCG & Charging Handle Combos Strike Industries Charging Handle with Extended Latch - Black + Rise Armament Bolt Carrier Group, .223/5.56, Nickel Boron Finish, Delta Deals BCG & Charging Handle Combos Strike Industries Charging Handle with Extended Latch - FDE + Rise Armament Bolt Carrier Group, .223/5.56, Nickel Boron Finish, Delta Deals BCG & Charging Handle Combos Strike Industries Latchless Charging Handle - Black + Rise Armament Bolt Carrier Group, .223/5.56, Nickel Boron Finish, Delta Deals BCG & Charging Handle Combos Strike Industries ARCH AR-15 Charging Handle - Black + Rise Armament Bolt Carrier Group, .223/5.56, Nickel Boron Finish, Delta Deals BCG & Charging Handle Combos Geissele Super Charging Handle (SCH) - DDC + Rise Armament Bolt Carrier Group, .223/5.56, Nickel Boron Finish, Delta Deals BCG & Charging Handle Combos Strike Industries AR-15 T-Bone Charging Handle - FDE + Rise Armament Bolt Carrier Group, .223/5.56, Nickel Boron Finish. 4.9 (6) 9MM CARBINE BOLT CARRIER GROUP SHORT STROKE COMPATIBLE. It may not deliver as much lubricity as a smoother nitride finish. However, this bolt carrier group is well-matched with Glock and Colt SMG magazines. OPTIONS + In Stock On Sale . Made out of 8620 Steel, and designed to work with Colt and Glock style magazines, this BCG is designed to make sure that you will not have any malfunctions when you are out in the field or on the range. It may not be much of a problem, but it will make the BCG a little more reliable than other options. When combined with preventable firearms accidents, you have a Buyers Guide For A 9mm Bolt Carrier Group, The Best 9mm Bolt Carrier Groups For 2022, JP Enterprises AR-15 9mm Bolt Carrier Group. Quantity Purchased. An awesome AR-15 needs a great bolt carrier group (BCG). Some brands still run MPI and having a BCG that passed MPI is a lot better than one that didnt. This one, in particular, may be one of them. Glock Style Magazine. Unsubscribe at any time. Why would you want to go with a 9mm Luger for an AR, to begin with? A few BCGs have the potential to take on the multiple amounts of firing power. Other than an extractor, ejector, and the fake gas key an AR-9 BCG is basically just a lump of metal. Therefore, you know whether or not it requires any additional parts or if its simply ready to drop in and be installed. And if you want to leave your options open and start collecting parts now, you can grab one of our modular 9mm bolt carrier groups and decide later on which type of magazine is best for you. Some even went so far as to say that he got a lot more than what he paid for. Price is perchance one of the most important aspects of a budget shopper to consider for the best 9mm bolt carrier group. If youre looking for a BCG that will be the perfect match for your Colt AR-15 9mm pistol, look no further than the Colt brand BCG. Furthermore, the installation was easy and needs no modification. Quantity: Description. So they want a BCG that is built to last them years. A few BCGs have the potential to handle the multiple amounts of firing power. Known for their pencil-thin barrels, gunner profile barrels, and even their Ultralight FX5500 4.95 lb complete AR-15, Faxon also makes more affordable lightweight BCGs compared to other manufacturers. If youre simply looking for the best of the best when it comes to BCGs, the Brownell Brand AR-15 9mm BCG could be something that youre looking for. When youre assembling your AR9 especially, all of the parts are going to add up in cost, and they can add up quickly. Aero Precision 5.56 Bolt Carrier Group, Complete - Black Nitride $ 149.99 $ 112.49 Select options. So it has the capability to work with a good amount of upper and lower receivers. Get gun deals, hand's on reviews, educational content and updates on law changes daily! Nickel Boron consists of 95% Nickel and 5% Boron. The gas flows through the key and will fill up the chamber inside the BCG behind the bolt that has been created by the gas rings of the bolt, this forces the bolt to act like a piston and pushes the mass of the carrier backward. No spam. Bolt Carrier Groups; Charging Handles; Complete Kits; Gas Blocks; Gas Tubes; Iron Sights; KeyMod Accessories; . Quick View. Additionally, this bolt carrier group is well-matched with popular competition components like single stage triggers and the JP Enterprises silent capture spring. Well, yes but also no. 9mm ARs also (generally) have less felt recoil making them easier and more comfortable to shoot. Of course, factors like weight and cost will also come into play here. WMD Guns Nickel Boron X Bolt Carrier Group. Description. TPWSOT A+(729) Seller's Other Items. We know that a BCG like Foxtrot Mikes wont steer you wrong in the slightest. Unsubscribe at any time. Alternatively, it can be the pistol design itself. 1:10 Twist. Last but not least, this bolt carrier group is compatible with standard AR-15 upper receivers and ejection port covers. Get gun deals, hand's on reviews, educational content and updates on law changes, daily! Until you abide by a few considerations in your mind. With different coatings and weights to be chosen for your BCG,AR15Discounts has exactly what you will need and want for your build. Nickel Boron Bolt Carrier Group - AR15 M16 .223 - 5.56 . And there is no moving bolt since nothing locks into the barrel extension. The magic fairy dust is namely polytetrafluoroethylene you might know it by the brand name Teflon. Lifetime warranty on functionality, (normal wear and tear excluded) Share. At this point, its companionable with most of them but not all of them. So why not make a BCG that brings a very influential semi-automatic together with one of the most admired brands of pistols? It appears golden and offers easy cleaning benefits along with a very tough and lasting coating. Quoted: United Defense Labs 9mm BCG. In some cases, you can even interchange the magazines. Nitride coating is the most popular choice of coating, a type of chemical treatment that hardens the surface. Remember that the bolt carrier group is the beating heart of your 9mm AR carbine. Without it, you cannot even shoot your carbine to begin with! If youre looking for a BCG that will be the picture-perfect match for your Colt AR-15 9mm pistol, look no further than the Colt brand BCG. TSG PVD Coated Satin Rose Bolt Carrier Group With Black Nitride Bolt Head (0) $144.00 On sale: $139.99 Sale. Youll often find TiN coated BCG in high-end AR rifles. This BCG is probably considered the best because it is simple to install and it will get your gun to work in the quickest time possible. Aside from the easy installation and quality construction, most users were able to fire off hundreds of rounds without a single reliability issue. However, not this one. Bolt Finish: Blue PVD, Chameleon PVD, Chrome, DLC, Ion Bond FDE, Lithium Isonite, Mag Phosphate, Nano Diamond Nickel, Nanoweapon, Nanoweapon Chrome Nitride, Nickel Boron, NP3, Salt Bath Nitride, Stainless Steel . 9mm Nitride Hybrid Bolt Carrier Group for Glock & Colt . At a Glance: Our Top Picks for 9mm BCG. As a golden rule, bolt carrier groups typically cost anywhere from one hundred to three hundred dollars depending on the group. These might end up matching your list of what to look for in a BCG. That said for some reason, many BCGs dont actually tell you that they are MPI tested and if they are if it is individual testing or batch testing. But this is a BCG that is built to be beaten and run hard for things like competition. Hence, nitride coating allows the resistance against corrosion. SKU: APRH100070C. This is designed to take on all kinds of constant gunfire. There are two major ways of making an AR-9, one uses Colt SMG magazines and the other uses Glock 19/17/34 magazines. R1 Tactical PVD M16 Bolt Carrier Group - Blue. . Super durable, especially with the addition of the nitrite finish, 1. If youre looking for the best 9mm BCG, then you have come to the right place. . This 9mm bolt carrier group BCG is one that may have been created for the competitive shooter in mind. Fundamentally, a 9mm BCG is a chunk of metal that doesnt really do much other than add mass to the system. Now, the finish is a regular phosphate coating. When looking to upgrade yourAR-15, one of the first parts you might want to upgrade is theBoltCarrierGroup(BCG), as the BCG is responsible for most of the firing action that will take place in anAR-15. Address: 40 S Main St, Tooele, UT 84074, United States, Monday Friday: 10am 7pm Description: F-1 Firearms Durabolt carrier group (BCG) is full auto-rated and is available in 5.56 NATO, 7.62 NATO and 9MM. One even went so far as to say that he got a lot more than what he paid for. Sale! They want something that can last them pretty much close to a lifetime. Missing parts can cause quite a catastrophe (and obviously wont allow the BCG 9mm bolt carrier group itself to work). After 100 rounds, it remained reliable for most shooters. OUR TOP PICK: Brownells - AR-15 Brownells 9mm Bolt Carrier Group. Nothing a little testing and alteration cant fix. You can learn more about me here. Compatible with most Colt-brand AR-15 pistols and magazines, R&D Precision 9mm Complete BCG Versatile 9mm Bolt Carrier Group, 1. But that is in a normal AR-15 BCG. This isnt a bad thing, just something to know. No failures or reliability issues were reported. Whether youre building it from the ground up or simply upgrading it from something else, you want a BCG that is fully functional, smooth, and reliable each time you use your pistol. Radial Delayed Blowback Bolt (Patent Pending) Requires enlarged ejection port for reliable operation. The 7.62 NATO AR-10 bolt carrier groups are compatible with DPMS-spec large frame receiver sets and associated . Our . Aero Precision AR-15 5.56 Bolt Carrier Group, Complete Black Nitride - APRH100615C. On a side note, make sure the bolt works with ramped barrels. Accepts a standard 5.56 AR15 extractor. Hard chrome is a durable and reliable coating but it is often difficult to apply. On the bright side, it comes with an ejection port cover notch. NBS 9mm Bolt Carrier Group Blue PVD - 7217. This is a radical (get it?) Gun Details. M16 9MM Bolt is pretty much the most affordable 9mm bolt carrier group that you can lay your hands on for home defense purposes without any nonsense. Aside from that, the construction is solid and everything is accumulated in place. This was made to handle pretty much all kinds of multiple firing episodes.