Bolt Carrier Group- Lightweight Nickel Boron $ 250.00. How about the best home defense pistol? They may be a little bit pricey but you get what you pay for. Properly manufactured BCGs with a phosphate finish will still have a chrome lining inside the gas key and inside the carrier where the gas rings ride. All this NiB and no mention of the Young Manufacturing chromed M16 BCG and bolt? We only email about once per week and we do our best to make sure they're worth your while. At that point it's a Nickel Boron (Silver) vs Titanium Nitride (Gold) discussion and that's a discussion for another day! Nickel Boron (NiB) used to go for a lot more in price but now theyve stabilized at around the BCM pricepoint. Hard Chrome has the edge in hardness but Nickel Boron wins on slickness. Mass that should help with reliability. And is easier to clean. What finish you select becomes pretty much a matter of personal preference. Want something in the middlethats mil-spec AND Nitride coated? The more mass you have coming rearward the more recoil youll feel. A lot of manufacturers offer a completely 9310 steel bolt carrier group. While Nickel Boron (NiB) is silver and shiny. Fantastic build and cleanup is a breeze with the DLCoating. WMD Guns NiB-X LR-308 Complete Bolt Carrier Group Nickel Boron Finish WMD Guns NiB-X LR-308 Complete Bolt Carrier Group . Total weight is 7.87 oz which isnt that much less than the other steel-cut lightweightsbut I like having the complete full-auto form factor. Been throw 4 barrels, but the BCG looks near new. If it is and you want to spend the money and you like the color, well then it just might be a Nickel Boron kind of a day for you! $199.00 $169.00. Left Hand Nickel Boron BCG M16 / Ar15 Bolt Carrier Group $ 299.00 $ 149.00 . Check out Rainier Arms Nitride BCG which meets or exceeds mil-spec. Click for Details. First off, full-auto BCGs are legal and dont magically make your AR-15 automatic firing. Thanks Mike, I've actually never heard of them! FailZero 6.8 SPC Type II EXO Nickel Boron Bolt Carrier Group $ 179.99 $ 171.99 More Info. This Bolt Carrier Group (BCG) comes fully assembled and ready to drop into most mil spec AR15 upper receivers. Faxon Firearms Gen 2 9mm PCC Blowback Full-Mass Bolt Carrier Group - Glock & Colt Compatible | Nitride . Saltwater, White Label Armory barrels are produced in-house by Outerwild. johhny B and his boys standing on the corner sucking that corporate dick again. In Stock. All critical parts are coated with EXO Nickel Boron technology that provides permanent dry lubricity, extreme durability and increases both wear and corrosion resistance. Full auto bolt carriers are essential if you run a fostech echo trigger. * One is actually a BA BCG, but it's really a re-branded Aero BCG, which in this particular case is really a Toolcraft BCG. Our Low Price $325.41 . Otherwise I really enjoy your articles, thanks. Learn the 3 most popular shooting stances & more. Shell be able to help you out. Full mil-spec everything. Anickel boron bolt carrier group will have greater lubricity and corrosion resistance than both chrome and nitride BCGs. Ok guys I love guns and building them and customizing them but I dont know everything about everything by far and now I'm on researching BCG's. We also have a whole guide just for, Since the bolt carrier group is shot backward towards the shooter the, Building a performance-tuned competition rifle with an, Chrome lined interior bolt carrier key and bolt carrier, Coated with a matte black mil-spec finish. Type your email address and well send In Stock. Check out our NEW Stainless Steel FLUTED HBAR 16" Barrel. The marketing hype said the quit the endurance test at 5000rds with no failures. anything extra and your Titanium Nitride is an extremely hard ceramic material, often used in aerospace and military applications that improves the maintenance, cleaning, and edge retention. You may want to look into Barnes Precision Machine next time. Im building an AR 10 , its the first real build that Ive committed to . And theres their Titanium BCG for 5.56/.300 BLK. For over 75 years, shooters, professional gunsmiths, hobbyists, military/law enforcement armorers, hunters, and gun tinkerers have turned to Brownells for high-quality guns, gun parts, ammunition, and more. It can make you go nuts (the above is probably half of my BCGs). The Massad Ayoob Group (MAG) Qual is This group also features a stainless steel gas inlet tube that's pressed and pinned into the solid gas key. Free Shipping on orders of $199+ |Use Code: SITESHIP | Restrictions apply, Offer ends 3/5/2023. The bolt carrier group (also known as the "BCG") is the heartbeat of any rifle like an AR-15 or AR-10. It's bes 458 Socom / 450 Bushmaster Ar15 BCG Bolt Carrier Group - Nickel $ 288.54 $ 179.00-24%. Subscribe to Pew Pew Tactical's sales and deals email. But now you have aggressive weight-reducing cuts like with the Faxon Lightweight BCG. Sale Price: $169.95 . Since the typical AR platform uses a direct gas impingement design, the bolt group is in contact with carbon-laden gas with every shot. Looks great under our PREMIUM Handguards now Buy 1, Get 1 FREE! . A nickel boron bolt carrier group will have greater lubricity and corrosion resistance than both chrome and nitride BCGs. The Brownells M16 5.56 Complete Bolt Carrier Group is an affordable option that is built and tested to provide flawless operation in any AR-15 or M16. I used Toolcraft nitride bcgs for my last 2 builds and have been more than happy with them. Im still testing this one out but it might be a good substitute for the RCA one at some decent savings. Best Low-Mass or Lightweight Bolt Carrier Groups. Had never heard of them. Learn more at. If you look closely youll see that the Titanium carrier is black (DLC: diamond-like coating) while the bolt is silver (nickel boron). NIB (nickel boron) Bolt & Carrier; S7 Extractor; Full Auto Compatible (M16 Cut) Forward Assist Serrations; Staked Gas Key Bolts; 8640 Firing pin; 4340 Cam Pin; For specific comparisons of black finishes (Phosphate vs Nitride vs DLC ) see here The Best Black BCG Finish - Phosphate vs Nitride vs DLC. For these reasons, it is a very popular AR-15 BCG finish. This is the battle of the silver finishes. Select what level shooter you are! Out of stock. A completely assembled, ready to install AR15/M16 Bolt and Carrier System. I've found NiB & TiN BCGs for $100 & $120, respectively. What about AR-15s by Geissele? Ive actually had two BCGs gas keys come loose, one being an early Fail Zero NiB BCG. Features: .223/5.56 NATO Nickel boron finish M16 cut 9310 steel carrier Carpenter 158 steel bolt I own a few from cryptic Coatings, Radian, and toolcraft. The PVD coating by Ionbond provides a very low coefficient of friction while providing a unique look and increased reliability. Enable Accessibility. guns & Firearms instructor John Farnam has NP3 applied to not only the BCG but also the inside of the upper and lower receivers of his custom FSM4 AR15s. It is an extremely tough, corrosion proof coating, with excellent low-friction properties. Precision machined from high quality 8620 steel and coated with NiB electroless nickel boron with advanced UCT EXO, these Bolt Carrier Groups by LANTAC offer ultimate lubricity for a smoother operation. The carrier is high-phosphate-nickel coated and features a chrome-plated bolt. Phosphate would be my last choice but if I am feeling nostalgic then it's the only choice. So far I can definitely feel the recoil difference between the different settings. Smooth cycling and is easy-to-clean by simply wiping it down. I do like them in terms of increased lubricity and ease of cleanup. , What's the best handgun for a beginner? But if you want all the functionality at half the price? My preferences? Ive read numerous stories of stacking tolerances from some manufacturers, due to the thickness of the coating. document.getElementById("copyright_year").innerHTML = new Date().getFullYear(); The 1911 pistol is an American icon and Dan Wesson makes some of the best! The DLC was chosen for high wear resistance and a low coefficient of friction. TSG Dark Gray Bolt Carrier Group (0) . It physically moves backward into the buffer tube as the gun is fired and does the work of chambering the next round when pushed back into battery by the buffer. IMO, A bcg i purchased a while back that have had zero issues with is sharps rifle co with its reliabolt. Can you provide some input? Brownells products are quality through and through. Advanced . Well cover some of the choices and then our favorites for different purposes (and budgets)from mil-spec to competition and even some builds just for looks. Quality features include: .223/5.56 Caliber. Every quality source I have seen sells only complete BCGs. Nickel Boron treated parts include: Bolt Carrier, Bolt, & Bolt Components. Since the bolt carrier group is shot backward towards the shooter the weight of it affects recoil. But if mil-spec is the name of the gameget the BCM. , The bolt carrier group is the heart of your AR15. SRC.. and they are reasonably priced. While the Nickel Boron on the 9310 steel bolt was chosen for being easy to clean, having a low coefficient of friction, AND with the benefit of heat dissipation. Please tell us which barrels so we can avoid! Yes what he said. We'll send you the latest guides and training tips geared Faxon Firearms 5.56 M16 Bolt Carrier Complete, Chameleon PVD. With an ultra-low co-efficient of friction, the Nickel Boron Bolt Carrier Group offers users a high resistance to wear and tear as well as corrosion resistance. Normally a low mass BCG is combined with an adjustable gas block, less mass means less force is needed to move it. Blem PVD Rainbow M16 BCG Chameleon Bolt Carrier Group - $113.99 w/code "NEW5OFF" $113.99. SpiceTac | AR-15 Parts. 15k rounds and counting on my carbine. wow!! Popular seach, Category Choosing a BCG for your next rifle build doesn't have to be a chore. The XPB has a patented Relia-Bolt and is machined out of S7 tool steel. White Labels parent company, Outerwild produces thous, Please note the discount applied to this product is because the blue color on these AR15 Bolt Carrie, White Labels house made M16 bolt carrier group is the perfect BCG for your next build and is, White Labels parent company, Outerwild produces our M16 BCG which is trusted by seasoned shoo, SP4 Extreme Wear Coating Technology is here! M16 Bolt Carrier GroupBillet Extractor, 5.56, Chameleon. Ar15 Upper/lower Accuracy anti-wobble wedge $ 6.60 $ 4.99 . Add to Cart. Both are superior finishes with distinctly different looks. The AR15 use the lube not only as lubricant but also captures particles. Our goal is to go above and beyond Mil-Spec expectations! We also have a whole guide just for choosing a lightweight bolt carrier group,so be sure to check that out if you want to know more. Compensators/ Flash Hiders/ Muzzle Brakes/ Thread Protectors, 6.5 Grendel Type II Complete Bolt & Carrier Group. Also, to everyone, be careful with NiB bolts, and be sure to check headspace on every build. Nickel-Teflon +1. "Mil Spec"; A specification that sets the lowest quality the government will accept. I've heard lots of good things about Radian and it sounds like you're a fan as well? The F-1 DuraBolt bolt carrier group is M-16, full-auto rated. I am interested in a full auto BCG. Finish: Nickel Boron Coating Bolt Steel: Milspec Carpenter No. Facebook; Instagram; . From full-auto to lightweight, different coatings, MPI inspections, and more. It is also smooth and slick which makes for smooth operation and easier cleaning. And stay in touch with newsletters of our best articles on techniques, guns, & gear. Because nitrided bolt carrier groups do not require chrome lining of the gas key or inner areas of the bolt carrier, manufacturing costs are reduced. You don't have to run full-auto to benefit from such an AR BCG. Awesome BCG at a reasonable price. I also agree with a lot of others here that cryptic coatings should be considered, they are the slickest bcgs I've ever used with the lowest friction on the market. Of a given product or application of a feature. Mil-Spec Extractor Spring, black extractor insert, Viton O-Ring. Plus, how many of this list are made by the same REAL manufacturer? A little expensive but my AR's run so smooth!! Go to NICKEL BORON NICKEL BORON. Not sure how he failed to include Toolcraft. None of the other finishes (Nitride, DLC, Titanium Nitride, etc) will be chrome lined in these areas. Whats your take on the BCM? what makes the BCM bcg better than the bcg it copies COLT. GOOD SO WE ARE WATCHING YOU DO NOT HAVE TO MUCH FUN OK OR WE WILL TAKE IT AWAY AND KUDNAP YOU LOCK YOU UP PERMANENTLY OR FINE YOU UNTIL PROSTITUTION PAYS YOUR BUTT OUT OR YOU FIZZLE INTO LARD. Another recent addition from the makers of the most hi-tech AR-15 muzzle brakeone thats 3D printed from Inconel (think rocket ship engines). It has the lubricity of the NiB, it is cheaper than NiB and it cleans up every bit as easy. The PVD coating by Ionbond provides a very low coefficient of friction while providing a unique look and increased reliability. From my perspective, however, 9310 is an excellent option and is objectively stronger than 8620 and Carpenter 158 steel. They are both winners, go with the finish that gives you the finished look you want. And now with different coatings. Semi-auto carriers are now the ugly step-child of the BCG world and dont have many purposeslike commercial buffer tubes and stocks. I like bcg from Daniel defense and spikes tactical. This finish has excellent lubricity, hardness, and corrosion resistance, but those benefits can be found in other finishes. Grid Defense offers premium AR15 parts with a focus on bolt carrier group, uppers, lowers, 80% lower and AR-15 build kits. &n For views of different finishes see our Toolcraft Gallery. PSA made the list of best BCG but DD isn't on the list? Its great NiB will run fine with a small amount of lube I recommend using normal amount of lube. Thanks to top brands like Aero Precision and FailZero are built to perform flawlessly with your favorite firearm. Reason #1 - Reliability. Mil-Spec is a bit of a buzzword in the AR community. The bolt carrier group is machined from the toughest steel and topped off with an impenetrable layer of nickel boron. Enable Accessibility. Toolcraft Phosphate Bolt Carrier Group (SpiceTac), Toolcraft is an OEM provider of BCGs to many firearms manufacturers. Pros. With a reputation for absorbing punishing treatment, I put this one to the test. An aluminum carrier rubbing an aluminum receiver led to the carriers being used up in a few thousand rounds. That would be a more interesting, informative, and transparent story on BCGs. Nickel Boron (NiB) coatings offer durable and reliable operation. All ACME BCG parts are of the highest quality and 100% made in America. Get proficient on YOUR time. Phosphate has been serving the military well for many years and it works very well. A Mil-Spec BCG is about 11.6 ounces, but you can be much lighter nowespecially with cuts and exotic materials like titanium. Quantity: We currently have 14 available. NP3 is a proprietary finish offered by Robar Inc. This clown not mentioning it, and then listing 10 absolute pieces of trash is embarrassing for a tactical website. Bravo Company Manufacturing (BCM) M16 BCG Let's just start with our editor's pick for a branded mil-spec BCG. Mil-spec doesnt mean greatest ever, or worst, its just in spec to a military contract. The weight saving is great if you're trying to tune the rifle, but it does require tuning. AR Uppers & Lowers, Rifle Accessories, Mil-Spec Parts | Aero Precision Brownells has thrown a contender into the ring with their lightweight BCGs. We take this Ruger Mark IV Tactical f Both of these finishes are far ahead of phosphate as far as slickness and ease of clean up are concerned. 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! FEATURES. The bolt itself is standard Colt milspec. FailZero EXO Nickel Boron M16 / M4 5.56 Bolt Carrier Group Or am I stuck with replacing the entire BCG to get an M16 bolt carrier? NiB coatings do add thickness and most bolt makers pay attention to the bolt face but for get about the lugs, where a small buildup of carbon will lock your bolt up. Create an Account; Login; Create an Account; Cart (0) View Cart; The Brownells M16 5.56 Complete Bolt Carrier Group features a bolt fabricated from 9310 steel th. Man it sucks to see how much the prices have gone up since this article was posted just a few months ago. Free shipping on orders of $199+ |Use Code: SITESHIP | Restrictions apply, Offer ends 3/5/2023. Live Chat Live Chat. And now I hope to answer some of yours! I became my group's "gun guy" and everyone who had questions came to me. I just purchased a nitride (sometimes referred to as Melonite) finished BCG. Properly built, no corners cut.DISCLAIMER: Due to the PVD process, each product may have a slight variation of color. Give it a rating below. Toolcraft Titanium Nitride BCG (SpiceTac), Above: This Bravo Company (BCM) BCG has been refinished with NP3+ by Robar. See our review here: For a more detailed look at Nickel Boron see our blog post: Also see our review of the Toolcraft Nickel Boron BCG here: It's a difficult finish to apply and as a result it is one of the more expensive finishes. It has a 9310 bolt but that is the standard for lightweight builds. WMD Guns' proprietary NiB-X nickel boron coating for BCGs delivers a finish over 40% harder than chrome and with a 30% longer life span even in a rifle bore. Aero Precision Black Nitride BCG (SpiceTac). what is the major difference between a 8620 BCG and a 9310 BCG? Shout out to Voodoo Innovations. BCM M16 BCG Nothing much to say except it's mil-spec everything and has a great reputation. My WMD NiB BCG has been chugging along in my AR pistol for a few thousand roundsand Ive only needed to wipe it down with some cleaner and microfiber cloth. In a semi-automatic rifle, this has zero effect on how the gun functions. I don't see the merit in showing all these "distributors" who are mostly "private label" BUYERS of their BCG from a very short list of real manufacturers, when all they do is put their name on it, when they're selling the same thing. Since LMT says the only BCG that works is theirs, I would go with what they say. The chances of that mattering for an average shooter that puts even a few thousand rounds downrange a year is super slim. 308 BOLT CARRIER GROUP - NICKEL BORON. That means each bolt is individually tested at a proof load. Mil-Spec generally means the rifle is built to pass military specifications. The heavier standard BCGs are better suited to running any kind of ammo through any kind of gas system. Thanks guys! The added mass of the BCG along with its shrouded firing pin takes away the worry of weapons failure. Is a 9310 steel BCG better steel than a 8620 steel BCG? If you go chrome it will probably be for the color and the uniqueness of the finish. Been running LANTAC E-BCG's in all my AR's with no issues. Currently Im using BCM, F-1 Firearms, Cryptic Coatings, Lantac, JP Rifles and a few others. Aero Precision Nickel Boron BCG First Look Review Stabilizing a Muddy Road Russ Lanoie Sons of Liberty Gun Works East India Upper Receiver - Owner Induced Feeding Problem School of the American. Sharps Rifle Co. Xtreme Performance BCG (DLC). A chrome BCG will be significantly more difficult to find and more expensive when you do find one. The 308 Relia-Bolt is made of robust 9310 nickel-chrome-moly alloy steel. Hi, I'm Eric Hung and I got into guns when I was around 25 and started with YouTube videos, scouring forums, and eventually taking a bunch of classes. Green +2. 13 Best AR-15 Bolt Carrier Groups (BCG) 1. This. I cant remember what the other was but it was a plain basic one. The bolt carrier is what specifically holds the firing pin, gas key, cam pin, and bolt together. After firing less than 100 rounds, I found the BCG did not clean up very well. It is a surface treatment that unlike coatings will never chip or flake off. *Coloration can vary greatly from BCG to BCG due to the manufacturing process. $254.99 $184.99 Sale. Lightweight AR-15 Bolt Carrier Groups Heres my opinion, That does it for BCGsthere are lots to choose from. I kept scrolling, looking for the Lewis. The bolt carrier group (BCG) is without a doubt the hardest working component inside an AR15. Extreme hardness and corrosion protection, Ballistic Advantage DLC BCG (Ballistic Advantage), Above: Toolcraft BCG with Titanium Nitride finish. Our Nickel Boron coating reduces friction, simplifies cleaning and maintenance, and extends the life of critical components. (no automatic penis or mouthfuls of jizz for BATFE) Try contacting E2 Armory - ask for Kaylee. gear. Primary Weapons Systems DI BCG should be #1, followed by POF, BCM #3. The bolt carrier is machined from 8620 carbon steel. There We carry high-quality products and back them with the industry's strongest guarantee. JoeBob dun saved you $20.00! If there is anything in your cart, it will not be brought over to the old site. No joke , its crazy right now , hard enough to even find anything in stock at that. All critical parts are coated with EXO Nickel Boron technology that provides . I would have liked to see mention of enhanced bolt carrier groups like the lantac or radian that have different dimensions and can help improve accuracy. Radically improves the performance of your AR15/M16 and eliminates the need to apply oil or grease to treated parts for the life of the weapon. There's a vast number of finishes available for AR-15 bolt carrier groups (BCGs) today. Lets just start with our editors pick for a branded mil-spec BCG. Please email [email protected] or call 407.928.2666 to acquire a Return Merchandise Authorization Number (RMA.) I'm sure they have some advances with their $500 BCG but mine won't be in for months. Its MPI tested and otherwise mil-specexcept that the bolt is made of 9310 steel instead of Carpenter 158. I've doubled the price of my first AR (Ruger AR556) with optic and other upgrades. Then clean them to see which is easier. Quick view. Shop our vast selection and save! Review our complete Return Policy Financing Available This BCG is a giant leap in the area of durability and reliability. Toolcraft is an OEM provider of BCGs to AR15 manufacturers. It comes in at 7.9 ounces and is indistinguishable from their regular Nitride version except when you pick it up. Rich, I'm one of those aforementioned "newbies." This is where you can go stupid cheap on buildsthat still work reliably (PSA 3 AR-15s Review). Bolt lugs are chamfered 45 degrees to ensure reliable action for even the highest pressure hand loads and fast lightweight actions. White Labels house made M16 bolt carrier group is the perfect BCG for your next build and is compatible with any AR15 build. I bought a LH bolt carrier group from Stag with their Nickel Boron finish. ACME 5.56 Bolt Carrier Group AR-15 Nickel Boron C158. : Some of the products on this website can expose you to chemicals including lead, which is known by the State of California to cause cancer and birth defects or other reproductive harm. If you havent tried the Black Rain BCG, you are missing out on the smoothest running BCG on the market today. Learn all the important stuff about handgunswith none of the attitude. ALWAYS, ALWAYS 100% flawless! Their mystic black has a friction coefficient of 0.01 for comparison NiB is 0.5-0.8, DLC is new and its 0.02-0.15(something else to consider when looking at coatings), TiN I believe is 0.45. The carrier itself is a very low wear part, the only part that really takes any wear is the cam path itself and that isn't enough to become a problem very often. towards your level. Want to go lightweight for competitive shooting? Above: AR-15 BCGs with Nickel Boron finish by Fail Zero (Top) and Toolcraft (Bottom). beta boy will always lick the biggest shaft long as they pay his fary white tennessee ass.. These are two of the least expensive finishes available. In Stock. Nothing much to say except its mil-spec everything and has a great reputation. This product group features an AR-15 Nickel Boron Bolt Carrier Group ( 5.56/.223/300AAC ) combined with an ambidextrous charging handle. Chrome is a finish well suited to the harsh environment where the bolt carrier group operates. Share your e-mail with us to receive regular sales, offers, and promotions. We're not a huge corporation that values the bottom line more than their customers and we're not a one-man band selling AR15 parts out of a garage, we're big enough to compete and small enough that each customer matters. If it doesnt say in the descriptionit probably is only batch tested. Plus the silver color pops out in your upper receiver. Get Our Top Shooting Drills and Zeroing Targets ($47 value - but FREE for a limited time). GUARANTEED. It must properly contain the high chamber pressures of the 223/556 . So if you don't mind cleaning your current and the recoil isn't a big deal, what other reason is there to change? Above: Chrome lining inside Toolcraft phosphate carrier can be seen with light coming in from the cam pin slot. Carrier key The key to cycling a DI AR -- the gas key. There A low mass BCG moves faster which could increase your rate of fire, but skill makes a bigger difference in cyclic rate than bolt weight in a semi-auto gun. Kind of seems like a commercial for Brownells, Hard to trust a list without fail zero on it. Additionally I would recommend other bolt materials like the sharps that's made out of s7 tool steel, or JP enterprises who makes amazing products like a variable mass carrier, and enhanced bolt that has a different lug cut to ease lock, strengthened cam pin hole, and low friction ring seals to reduce wear. I'd like to purchase a quality bolt carrier without a bolt. Anderson Manufacturing - M16 5.56 Bolt Carrier Group. purchase helps support my work in bringing you more awesome gun and gear articles. are known for less felt recoil, so why would that not translate to the AR platform when talking about the BCG mass? Personalize your experience. QPQ +1. Any reduction in recoil and firearm movement, in general, helps you stay on or get back on target as you fire. Bolt Carrier Groups (BCGs) Fail Zero M16/Full Mass Nickel Boron EXO Bolt Carrier Group - BCG / Print: Fail Zero M16/Full Mass Nickel Boron EXO Bolt Carrier Group - BCG DEAL OF THE DAY Rating: Total Reviews: (104 reviews) Write a Review Product Code: FZ-01428 MSRP: $169.99 Sale Price: $114.95 Savings: $45.05 Add Charging Handle: None Nickel +1. 6 Reviews. Young MFG BCGs if you want real precision and aerospace component process technology. 800-741-0015. Nickel Boron tends to have more shine especially compared to matte chrome. One of my favorite uppers and full rifle manufacturers is Aero Precision (review of their M4E1 5.56 upper). Great combo with their builds if youre buying stuff from them anyways unless you want a different coating. Main thing is that it looks great and is performing great so far too. Before you had to go with different materials for the carrier like aluminumwhich turned out to not be a great idea. Ive helped others and watch a lot of gun Jesus for entertainment mostly but my experience with metal fabrication really grew when I tried to make a machine gun in my garage in my spare time. Also DLC coating is becoming popular and more common. I am reading thru this article on bolt carrier groups. CMMG Bravo .22 LR Conversion Kit W/ One 25 Round Magazine. The 308 carrier is precisely machined from case-hardened 8620 alloy steel. It also has high corrosion resistance as well as a natural lubricity. All components are coated with nickel boron to minimize friction and enhance performance. , The latest and greatest Ruger 22LR pistol is here! Both steels have high hardenability and are mostly used to manufacture components with a large cross-section requiring high toughness and core strength, usually on critical aircraft engine gears, or automotive applications. Nope, SA and FA BCGs have the same dimensions and will fit in any standard AR-15 upper! 5.56 Extractor Kit $ 4.95. Understanding the AR-15 Bolt Carrier Group what makes them better than Colt,Bcm because they might be easier to clean? Quick View. Please check the headspace on every build. Every time you pull the trigger on your rifle, the bolt carrier group goes to work; this is why it's critical to have a solid AR15 BCG in your rifle. Bolts, Carriers & BCGs (Bolt Carrier Groups), 17-4 H-900 Stainless Steel or Hard Chrome Firing Pin. A better one might last longer or be a bit more reliable in bad conditions, but that depends on what you currently have Vs. what you might upgrade to. Buy PSA m16 full auto nickel boron bolt carrier group: GunBroker is the largest seller of AR15 Parts Gun Parts All: 973044689. In both categories though, Nickel Boron has the edge over Nitride. AR15 Bolt Carrier Groups White Label's parent company, DRG Manufacturing produces our M16 BCG which is trusted by seasoned shooters and depended on by experienced builders. Nickel Boron usually costs more than Nitride and that money goes to more performance. The Spikes Tactical M16 5.56 Nickel Boron Bolt Carrier Group puts the Spikes reliability and durability into your custom AR-15.