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Out of stock. 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. What brand is the full auto in the comparison that you did? Low-mass or lightweight bolt carrier groups are relatively new on the market. You can cut a few ounces off by using a low-mass bolt carrier. I am trying to do some research between the two and can't really come up with a PROs and CONs. Mil-spec means phosphate coated and is matte and a little bumpy. Awesome BCG at a reasonable price. White Labels house made M16 bolt carrier group is the perfect BCG for your next build and is compatible with any AR15 build. Brownells is your source for Chameleon Nickel-Boron Bolt Carrier Groups,Bolt Parts at Brownells parts and accessories. 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. Combine this with the fact that a titanium BCG is very expensive and it's hard to call it the "best". Rifleman Q & A, Nickel boron (NiB) bolt carrier groups, NiB-coated AR-15 BCG Latest More The Model Of 1903 Springfield: A Collector's Perspective The "U.S. Rifle, Caliber .30, Model of. 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. It is so strong that it is virtually scratch proof. And they are actually the cheapest in the whole article. Enable Accessibility. Otherwise I really enjoy your articles, thanks. Knurled Side Charging Handle (0) $16.75 On sale: $14.99 Just a specification, Mil-spec equipment began with a need to have proper performance and repair-ability among all military equipment. I've found NiB & TiN BCGs for $100 & $120, respectively. An awesome AR-15 needs a great bolt carrier group (BCG). Sale Price: $179.95 . Personalize your experience. Again, if its a duty or self-defense gunId opt for something MPI and HPT tested. SpiceTac | AR-15 Parts. Learn more at. Mil-Spec generally means the rifle is built to pass military specifications. Above: Toolcraft BCG with Diamond DLC finish. should ban this idiot from writing anything and only let professionals with experience and actual knowledge speak. FailZero 6.8 SPC Type II EXO Nickel Boron Bolt Carrier Group $ 179.99 $ 171.99 More Info. It comes in at 7.9 ounces and is indistinguishable from their regular Nitride version except when you pick it up. On the topic of recoil, I get the idea of 'less mass moving might = less felt recoil', but what about less mass in the BCG to absorb the recoil? I'd like to purchase a quality bolt carrier without a bolt. The Sharps passed with flying colors and the cleanup, even though it was filthy, was a snap. The enti.. Normally if you want to control the gas going back into your AR-15 youll need to pick up and install an adjustable gas block. Disassemble it completely, inspect, clean and lube it as you would a standard phosphate carrier group. Titanium doesn't offer as much over steel in this case as one might think. See our BCG recommendations:Best AR15 Bolt Carrier Groups. While Nickel Boron (NiB) is silver and shiny. But if you want all the functionality at half the price? Old school vs new school. I am reading thru this article on bolt carrier groups. If you havent tried the Black Rain BCG, you are missing out on the smoothest running BCG on the market today. With that VDI BCG, it is one less worry. On a full-auto AR-15 or M16, this rear lug pushes the sear release downwards which allows full auto (or burst) fire. anything extra and your Main thing is that it looks great and is performing great so far too. A great upgrade. purchase helps support my work in bringing you more awesome gun and gear articles. 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. O.D. Current mil spec for bolt carrier groups in military rifles (M16 and M4) is phosphate. The fact that no Cryptic Coatings BCGs are here means the whole article is useless, There will only be one bolt that I will use for the future, and it comes from Sharps. First off, full-auto BCGs are legal and dont magically make your AR-15 automatic firing. Select what level shooter you are! Also, to everyone, be careful with NiB bolts, and be sure to check headspace on every build. Nickel-Teflon +1. Ive run into more semi-experienced shooters than I can count who had no idea, or only a vague idea, what headspace is, and had never checked it on any of their bolts/barrels/rifles. Posted: 8/8/2017 3:54:01 PM EDT. It also has high corrosion resistance as well as a natural lubricity. M16 Complete Bolt & Carrier Group - Nickel Boron, AR15 Complete Low Mass Bolt & Carrier Group - Nickel Boron, AR15 Complete Low Mass Bolt & Carrier Group - Nitrided, Del-Ton AR15 MP/HP Tested Bolt & Carrier Assy, Del-Ton M16 MP/HP Tested Bolt & Carrier Assy BCG, Fostech AR15 M16 Bolt Carrier Group Black Nitride - 6226 ** LAST ONE, FosTech Complete LOW MASS Bolt Carrier Group (Nickel Boron), Odin Works 6.5 Grendel Type 2 Black Nitride Bolt Carrier Group, Anderson MFG AM-10 .308 Bolt Carrier Group, AR10 .308 Complete Low Mass Nitride Bolt & Carrier, 6.8SPC/224 Valk M16 Complete Mil-spec Bolt & Carrier - Nitride, Anderson Mfg .458 SOCOM Bolt Carrier Group, Angstadt Arms AR15 5.56 NATO Complete Bolt & Carrier Group QPQ Black Nitride Finish, AR15 .450 Bushmaster/.458 SOCOM Bolt Carrier Group, AR15 7.62x39 Complete Bolt & Carrier - Nitride, Black Rain Ordnance .308 AR Complete Bolt Carrier Group -Nickel Boron Coated NIB Finish, Brownells M16 5.56 MP Chrome Bolt & Carrier, Colt Manufacturing M16 5.56 Complete Bolt & Carrier, Faxon Firearms 5.56 M16 Bolt Carrier Complete, Chameleon PVD, Guntec AR15 Complete Mil-Spec Bolt Carrier Group (Rainbow Pvd Coated), Guntec AR15 Complete Mil-Spec Bolt Carrier Group (Titanium Coated), JP Enterprises 308 SS LMOS Carrier Group w/ JP Enhanced High Pressure Bolt (DPMS Platform) - Polished Finish, JP Enterprises 308 SS LMOS Carrier Group w/ JP Enhanced High Pressure Bolt (DPMS Platform) - QPQ Black Finish, JP Enterprises Full Mass Stainless Carrier with Key, JP Enterprises Low Mass Polished Stainless Carrier with Key installed, JP Enterprises Low Mass Stainless Carrier with Key, Lefty Complete Bolt & Carrier Group - Nitrided, Midwest Industries AR15 Bolt Carrier Group - Black Nitride, Stern Defense SD BU9 NiB ECHO - Glock Compatible, Powered by Network Solutions Online Store. 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. This group also features a stainless steel gas inlet tube that's pressed and pinned into the solid gas key. , The bolt carrier group is the heart of your AR15. How to Build An AR-15: Your AR Build Made Easy, BROWNELLS - M16 5.56 LIGHTWEIGHT BOLT CARRIER GROUP, BROWNELLS - M16 5.56 BOLT CARRIER GROUP NITRIDE MP, BROWNELLS - M16 5.56 BOLT CARRIER GROUP CHROME MP, FOXTROT MIKE PRODUCTS - FM-9 BOLT CARRIER ASSEMBLY, BROWNELLS - M16 5.56 BOLT CARRIER GROUP TiN MP, BROWNELLS - M16 6.5 GRENDEL / 6MM ARC BOLT CARRIER GROUP NITRIDE MP, BROWNELLS - M16 5.56 BOLT CARRIER GROUP NICKEL BORON MP, DANIEL DEFENSE - M16 5.56 BOLT CARRIER GROUP, SPIKES TACTICAL - M16 5.56 NICKEL BORRON BOLT CARRIER GROUP, BRAVO COMPANY - M16 5.56 BOLT CARRIER GROUP, WMD GUNS - M16 5.56 NICKEL BORON BOLT CARRIER GROUPS, BROWNELLS - M16 7.62X39 BOLT CARRIER GROUP NITRIDE MP, BROWNELLS - AR-15 9MM BOLT ASSEMBLY FOR GLOCK, SPIKES TACTICAL - M16 5.56 BOLT CARRIER GROUP, WMD GUNS - AR-15 5.56 NICKEL BORON BOLT CARRIER GROUPS, RUBBER CITY ARMORY - AR-15/M16 ADJUSTABLE GAS KEY, BROWNELLS - AR15 BOLT CARRIER GROUP 5.56X45MM NITRIDE MP, VOLQUARTSEN - RUGER 10/22 COMPETITION BOLT ASSEMBLY, FOXTROT MIKE PRODUCTS - AR-15 FM-9 COLT BOLT CARRIER ASSEMBLY, BROWNELLS - M16 6.8MM SPC BOLT CARRIER GROUP NITRIDE MP, California Residents: Do Not Share My Personal Information. . We only sell the best bolt carrier group, because we understand the crucial role it plays in the function of your AR-15. It weighs in a little lighter than the Faxon at 8.2 ounces probably due to the one additional cut. And I say this because it's alot stronger of a steel and lighter, so ad a DLC coating and I don't understand how it doesn't automatically win? Ar15 Magazine Mag Release Button mil . CMMG Bravo .22 LR Conversion Kit W/ One 25 Round Magazine. FINISH ON PAGES 3 to 987999246. wow!! In fact, chrome BCGs are somewhat difficult to find today, but worth it if you can find one. But my question is how is a Titanium one not the best choice easily? Reason #1 - Reliability. 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. Nitride has many advantages but it is not mil-spec for BCGs and that is an important consideration for some. The main reason to get this finish is going to be appearance. 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. &n Your AR15 build is important to you, so it is important to us. Another recent addition from the makers of the most hi-tech AR-15 muzzle brakeone thats 3D printed from Inconel (think rocket ship engines). Free shipping on orders of $199+ |Use Code: SITESHIP | Restrictions apply, Offer ends 3/5/2023. Sharps Rifle Co. Xtreme Performance BCG (DLC). Thanks! 800-741-0015. Nickel +1. Toolcraft Phosphate Bolt Carrier Group (SpiceTac), Toolcraft is an OEM provider of BCGs to many firearms manufacturers. Rough finish that requires more lubricant to run smoothly, Bravo Company (BCM) Bolt Carrier Group (Brownells). White Labels parent company, Outerwild produces our M16 BCG which is trusted by seasoned shooters a, White Label's house made M16 Bolt Carrier Group is the perfect BCG for your next build and is compat, SP4 Extreme Wear Coating Technology is here! Let me remind you that a quality Ar will run very dirty as long as it's wet. SRC.. and they are reasonably priced. AR15 Complete Low Mass Bolt & Carrier Group - Nickel Boron. The LMT BCG is the best on the market. Ionbond Diamond Like Carbon (DLC) Coating is a state-of-the-art metal finish applied through a Physical Vapor Deposition (PVD) process. The reason I decided to post here has to do with tolerances of different aspects and of degrees of temper and the utility of intentional variable of the former or later. Walker Defense Research Nickel Boron Bolt Carrier Group (1) $179.99 (Save 17%) $149.00 4 models Wilson Combat Bolt Carrier Assembly (28) As Low As (Save Up to $6.24) $179.95 Jacob Grey Firearms High Polished Nickel Boron 5.56 Bolt Carier Groups (1) $219.00 (Save 15%) $186.00 15% Bonus Bucks 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! Left Hand Nickel Boron BCG M16 / Ar15 Bolt Carrier Group $ 299.00 $ 149.00 . Sale Price: $169.95 . 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 has an attractive gray graphite-like appearance. The semi-auto ones have an extra cut that takes out some mass. Nickel Boron tends to have more shine especially compared to matte chrome. I just had a meeting talking about how few manufacturers there are for BCG's. Then clean them to see which is easier. Also DLC coating is becoming popular and more common. Facebook; Instagram; Help. DEAD FROM OVERDOSE OF SEMEN AND ASPIRATION OF JIZZ TO LUNG CONTACT Now we have again arbitrarily wrote one penis per mouthed BATFE member per load no penis shall be rendered to fire jizz while stand by penis is about to come under section 55.7 or 88.5 hence double loads of jizz or double or more PEENIS shall show intent on rapid fire guzzling of jizz or rapid mouth-ing offing of more than one (1) male penis regardless of girth, length ethnicity of male attached to or color of nor should sack containing balls or other devices be so attached nor this BATFE agent shall be considered rapid necking off of multiple penises and renders automatic mouthing offing of penis punishable by no less than ten (10) years maximum rectum stretching and fine no less than $250,000 (quarter million) or BATFE agent has had prior citation for choking upon or had sticky throat closure from inhalation of semen, but, juzz, jizzum, man paste or chowder OR ANY OTHER BY NAME FORM OF SPERM FROM PENIS ON ALIVE INDIVIDUAL THE PEOPLE RESERVE THE RIGHT TO MAKE QUICK CHANGES TO THIS DOCTRINE ST ANY TIME IN ORDER TO MEET OUR NARRATIVE OR BECAUSE WE HAVE WIVES AT HOME ON THEIR PERIOD VERY TUFF OR WE SIMPLY NEED TO APPEAR BUSY OR FUNDS BY WAY OF GRANT S OR DONATIONS ARE NEEDED TO FUND A COCAINE L, WEED, ALCOHOL AND PROSTITUTE PARTY THAT WE ARE THROWING OR BECAUSE WE ARE MAKING A STATEMENT TO PLEASE OUR FEMALE MISTRESSES OR ANY REASON WE WANT ETC.. A lot of manufacturers offer a completely 9310 steel bolt carrier group. And priced at a nice price point between the BCM and Brownells. Shop our vast selection and save! Quick View. Meticulous machining and a BLUE PVD finish by Io, Saltwater Arms M16 Nickel Boron Bolt Carrier Group is the perfect BCG for your next build. Bravo Company Manufacturing (BCM) M16 BCG Let's just start with our editor's pick for a branded mil-spec BCG. Quality features include: .223/5.56 Caliber. guns & 6 Reviews. So the real issue is buying a BCG from a reputable company that has either sourced or manufactured a quality party you can trust. Ion Bond DLC has been found to have a lower coefficient of friction and greater hardness rating compared to other coatings, such as Nickel Boron. Brownells is your source for Chameleon Bolt Carrier Group at Brownells parts and accessories. The weight saving is great if you're trying to tune the rifle, but it does require tuning. Above: Colt BCG refinished with matte chrome finish and nickel boron gas key. A sports car needs a great engine. 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. Finish: Nickel Boron Additional Features: Full Auto M-16 , Holes for Reduced Weight Weight: 10.5 oz Code: 2A8-BCG-STBCGSP-ST5BG05 MPN: ST5BG05 UPC: 855319005518 Free Two Day Shipping $250.00 Save 10% $225.00 Free shipping* & free returns* Expert AdviceRFQPrice Match Add to Wishlist Product Info for Spikes Tactical M16 Bolt Carrier Group 4 barrels in 15K rounds?? I find the Cryptic Coating BCG to be slickest and easiest to clean of them all. Custom Deal BCG & Charging Handle Combos Strike Industries Charging Handle with Extended Latch - FDE + Rise Armament Bolt Carrier Group, .223/5.56, Nickel Boron Finish. I have put them in all of my AR platforms in the past 2 years. We'll only use the information provided according to our privacy policy. Phosphate has been serving the military well for many years and it works very well. You do not pay Trouble is finding one. Aero Precision Nickel Boron BCG (SpiceTac). Anderson Manufacturing - M16 5.56 Bolt Carrier Group. The PVD coating by Ionbond provides a very low coefficient of friction while providing a unique look and increased reliability. Above: AR-15 BCGs with Nickel Boron finish by Fail Zero (Top) and Toolcraft (Bottom). Bootleg Adjustable BCG $209 . 9MM BOLT CARRIER GROUP - NICKEL BORON. I make it a habit of trying everyone I can get my hands on personally. 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 Weve got a dedicated section for the AR-15 here. All the high pressure bolts like JP Enterprises are made with 9310 and state its stronger than C158, which is just mil-spec (the minimum standard). LANTAC 223/5.56 E-BCG Full Auto Style Bolt Carrier Group - Nickel Boron. 458 Socom / 450 Bushmaster Ar15 BCG Bolt Carrier Group - Nickel $ 288.54 $ 179.00-24%. . They are a top manufacturer of complete rifles, carbines and pistols in their newer Super Duty line. There are so many BCGs out there so let us know what we missed. All ACME BCG parts are of the highest quality and 100% made in America. 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. Click below for a FREE LESSON! A little expensive but my AR's run so smooth!! Above: Toolcraft DLC BCG installed with black anodized Aero Precision upper, lower and M-LOK handguards. Love my AR-15 10.5 pistol! With nothing more than an initial lube, I ran this bolt carrier suppressed at breakneck speeds for just over 1,200 rounds the last 500 or so were steel-cased. At that point it's a Nickel Boron (Silver) vs Titanium Nitride (Gold) discussion and that's a discussion for another day! Dismiss. Faxon Bolt Carrier Groups are Superfinished to reduce friction, increase smoothness of operation, and reduce fouling. I cant remember what the other was but it was a plain basic one. So far I can definitely feel the recoil difference between the different settings. Fabulous company and pricing too. (, We noticed that you have previously logged in with your, Check what do you get by creating an account, Bookmark and compare your favorite firearms, 13 Best AR-15 Bolt Carrier Groups (BCG) [Hands-On], Low-mass or lightweight bolt carrier groups are relatively new on the market. Just asking since I'm enjoying learning about all of the fun you can have with the adult lego set! Semi-auto versions used to be significantly cheaper than FA versions, but now the difference isnt as drastic. With that comes a Gucci price though. My understanding is they are OEM for BCM BCGs. Carrier key The key to cycling a DI AR -- the gas key. Yea, nitride is just fine! Do check them out. 5.56 Bolt Spikes HPT/MPI Bolt Assembly - Phosphate $ 89.95. The DLC was chosen for high wear resistance and a low coefficient of friction. Heres my opinion, That does it for BCGsthere are lots to choose from. We cover the best-in-class bolt carrier groups for mil-spec, low-mass, slick coatings, exotic materials, and more. And is easier to clean. All of the finishes listed here are quality finishes and a good BCG will work fine with any of them. Maybe you have a better cartridge but it its not 5.56 NATO specs they will not accept it. The BCG's above are all great options, but the bolt itself is a different story. Faxon Firearms Gen 2 9mm PCC Blowback Full-Mass Bolt Carrier Group - Glock & Colt Compatible | Nitride . The bolt carrier group (BCG) is without a doubt the hardest working component inside an AR15. Built for a lifetime of hard use, this BCG can take all the punishment you can throw at it. The primary advantage of this is to reduce recoil. Spikes Tactical - M16 5.56 Nickel Boron Bolt Carrier Group. I was surprised they weren't included too. Learn all the important stuff about handgunswith none of the attitude. Easiest to clean, best customer service, and no, I'm in no way affiliated with them. Its MPI tested and otherwise mil-specexcept that the bolt is made of 9310 steel instead of Carpenter 158. The Brownells M16 5.56 Complete Bolt Carrier Group features a bolt fabricated from 9310 steel th. See our Toolcraft DLC BCG review here: For specific comparisons of black finishes (Phosphate vs Nitride vs DLC ) see here. Semi-auto carriers are now the ugly step-child of the BCG world and dont have many purposeslike commercial buffer tubes and stocks. 8620 Steel, 9310 Steel, Carpenter 158, Carpenter 158 Steel, Stainless Steel, Blue PVD, Chameleon PVD, Chrome, DLC, Ion Bond FDE, Lithium Isonite, Mag Phosphate, Nano Diamond Nickel, Nanoweapon, Nanoweapon Chrome Nitride, Nickel Boron, NP3, TiN, Salt Bath Nitride, Stainless Steel, HP Tested, Individually HP Tested, Untested, 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, TiN. The roughness of the phosphate finish wears down to become a smooth surface on the high wear points like the carrier rails. . Go/No-go gauges are too cheap to make excuses about safety concerns. Understanding the AR-15 Bolt Carrier Group Young MFG BCGs if you want real precision and aerospace component process technology. There Using our fully automated robotically, White Label Armory's in-house machined AR15 billet upper receivers are the perfect complement to our, The AR15 Ambidextrous charging handle made by Brace Built begins with the design, program, machining. Live Chat Live Chat. This product group features an AR-15 Nickel Boron Bolt Carrier Group ( 5.56/.223/300AAC ) combined with an ambidextrous charging handle. It's a good option, for some people, but it's not a great option for a lot of people. The bolt and carrier made of G7 steel an M-16 BCG. Looking for something a little more budget? Your feedbackers are lying to you , one of the best 556 BCG on the market! Im still testing this one out but it might be a good substitute for the RCA one at some decent savings. New coatings come and goand they all say they are the latest and greatest. Call Colt firearms directly and order from them. Our Price: $199.00. 158 Bolt: Shot Peened Mag Particle Inspected: Yes. I LOLd at the Magnetic Particle tested bolt picture. Review our complete Return Policy Financing Available Expensive especially since you will probably have to send yours in to be refinished. BCG/CH: Tactical Solutions Group AR-15 5.56/.223/.300/.350 Side Charging Bolt Carrier Group + Knurled Threaded Side Charging Handle for Tactical Solutions Group Side Charging BCG x2 MSRP: $134.99 $109.99 Sale what makes them better than Colt,Bcm because they might be easier to clean? They're respected for their reliable and durable AR-15 rifles. Toolcraft Diamond DLC BCG - The Best BCG Ever Made? APF Armory Bolt Carrier Group AR-15 223 Remington, 5.56x45mm Nickel Boron; APF Armory Bolt Carrier Group AR-15 223 Remington, 5.56x45mm Nickel Boron Shop All Featured Ammunition Featured Reloading Supplies Featured Gun Parts Featured . UCT Coatings of Palm City Florida applies their patented EXO Nickel Boron finish to many products including AR-15 BCGs for Fail Zero and Toolcraft. The PVD coating by Ionbond provides a very low coefficient of friction while providing a unique look and increased reliability. Bolt is shot Peened and HPT/MPI. For these reasons, it is a very popular AR-15 BCG finish. It is also smooth and slick which makes for smooth operation and easier cleaning. Full auto semi auto comparison. "Mil Spec"; A specification that sets the lowest quality the government will accept. Grid Defense offers premium AR15 parts with a focus on bolt carrier group, uppers, lowers, 80% lower and AR-15 build kits. Shooting 60 rds suppressed with a Nickel Boron carrier then a Chrome carrier. Kind of seems like a commercial for Brownells, Hard to trust a list without fail zero on it. IMO, A bcg i purchased a while back that have had zero issues with is sharps rifle co with its reliabolt. This is the battle of the silver finishes. Anickel boron bolt carrier group will have greater lubricity and corrosion resistance than both chrome and nitride BCGs. All components are coated with nickel boron to minimize friction and enhance performance. Or am I stuck with replacing the entire BCG to get an M16 bolt carrier? 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. . $254.99 $184.99 Sale. Shell be able to help you out. What about AR-15s by Geissele? Does not mean its the minimum or maximum. There NP3 is a proprietary finish offered by Robar Inc. Which does its job but does require more cleaning than newer coatings. Nickel Boron 5.56 Bolt Carrier Group (BCG) Rated 5.00 out of 5 $ 94.99 $ 79.00 $ 94.99 $ 79.00 Add to cart Quick View. The AR15 use the lube not only as lubricant but also captures particles. If none of that is you then Black Nitride and done! If you buy a product from us and decide to return it, well take it back at any time with very few exceptions. Faxon Firearms 5.56/300 BLK Gunner Light Weight Bolt Carrier Group - Chameleon PVD. Click for Details. Please view details for more information. 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; But if mil-spec is the name of the gameget the BCM. Nickel Boron is an advanced metal finish that offers high resistance to wear and corrosion as well as having an ultra low co-efficient of friction. Nickel Boron is easy to find today while Chrome is hard to find and generally more expensive. Give it a rating below. Top 3 Reasons You Might Want a Nickel Boron BCG. All bolts are fully MPI tested to ensure the material is sound and without defects. The carrier is high-phosphate-nickel coated and features a chrome-plated bolt. The bolt carrier is what specifically holds the firing pin, gas key, cam pin, and bolt together. Better than any "mil-spec" BCG because of its gas porting. 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.