View Profile View Forum Posts View Articles Senior Member Join Date Oct 2008 Location . Rainier Arms Precision Match Grade AR-15 Bolt Carrier Group (BCG) - Nickel Boron RAINIER ARMS . $174.99. BCM BCG (BCM-BOLT-CARRIER-GROUP-AUTO-MP) MPI 5.56 complete bolt carrier group is fully assembled and has a parkerized exterior and is chrome lined inside the carrier. Machined to USGI specifications, the carrier has a chrome lined interior and heat treated gas key secured with properly staked grade 8 fasteners. AR15 BOLT CARRIER GROUP 5.56 & 300 BLACKOUT BCG - NICKEL BORON. BCM Bolt Carrier Group MPI - Auto in Flat Dark Earth-IB (BCM-BCG-AUTO-MP-FDE-IB) is a low-friction, high-quality bolt carrier suitable for M4, M16, and AR15 platforms. Gas key is chrome lined and heat treated per GI specifications. BCM FLAT DARK EARTH Bolt Carrier Group MPI Auto (Comes with extractor insert!) Vali manused . 800-741-0015. I have a BCM bolt carrier group as well. Mfr Part: BCM-BCG-AUTO-FD. Out of Stock. Add to Cart. Bolt carrier group (auto version) f your AR15, M16, or M4 . MSRP: $169.95. In Stock. 158C has been tried and true in AR bolts, so I stick with it. SALE PRICE: $129.99. However, unlike my M&P 15 Sport's bolt, which has a pretty easy to install extractor pin, my BCM BCG's is borderline impossible. The AR-15 bolt carrier group, or BCG, is a critical and often misunderstood piece of the AR-15/M16 upper receiver. JoeBob's - Ran that in a 12.2" 300BLK, came with upgraded extractor kit and McFarland gas ring setup. Not Yet Rated Sold Out. 6.5 Grendel Type 2 Bolt Face - Black Nitride Bolt Carrier Group $ 225.00 $ 175.00 Add to cart. BCM Bolt Carrier Group (MPI) - Auto. Our Price: $ 44.95. Gas keys use grade 8 fasteners and are fully staked for a lifetime of service. HPT Bolt (High Pressure Tested/ Proof) MPI Bolt (Magnetic Particle Inspected) Shot Peened Bolt. Mil-Spec Crane O-Ring; F-1 5.56 Durabolt Bolt Carrier Group-DLC. No AR15 build is complete without a high-grade Nickel Boron bolt carrier group - BCG . Further, they are full-Auto rated and maintain the trip for full-auto fire control groups and new multi-stage trigger systems. Buy BCM M16 Bolt Carrier Group BCG BCM-BOLT-CARRIER-GROUP-AUTO-MP NEW! Black XD-40 Subcompact. Quick view Add to Cart. Gas-operated firearms, including various assault rifles, require a bolt carrier group (BCG) to complete the cycle when a round is fired. BCM BCG (BCM-BOLT-CARRIER-GROUP-AUTO-MP) MPI 5.56 complete bolt carrier group is fully assembled and has a parkerized exterior and is chrome lined inside the carrier. 6.5 Grendel M16 Profile Nitride Bolt Carrier Group Assembly. 100-020-760WB. (4) WMD Guns AR-15 NiB-X Bolt Carrier Group w/ Hammer $ 147.75. Tooted teenistujale Relvade osad Rifle parts Bolts and parts BCM. Sale. As such, the Bolt Carrier Group will show handling marks consistent with these quality control procedures. RTB Nickel Boron Bolt Carrier Group - 158 - MPI - M16 BCG (5.56) MSRP: $169.99. MSRP: $209.00 Your Price: $199.00. AR-15, Mega billet lower, BCM upper 16" midlength. Of course, BCM. Low to high. Bolt Carrier Group. 5 Stag - not bad either, upgraded extractor/spring/donut. BCG Parts. This little O-ring will probably fix your BCG problem. Customers who viewed this item also viewed. (BCG) Bolt carrier group (auto version) for your AR15, M16, or M4. The BCM Extractor Spring is so strong the Mil-Spec Crane O-Ring will probably not be needed, but it is included. Bravo Company M16 5.56 Bolt Carrier Group. BCM. . Rainier Arms has the Bravo Company MFG (BCM) Bolt Carrier Group on sale for $189.99. Parkerized exterior, chrome lined inside carrier, MPI Bolt assembly. Next. Mil-Spec Crane O-Ring: Customer Reviews (0.00) stars out of 5 # of Ratings: 0 Check Price. (BCG) Bolt carrier group (auto version) for your AR15, M16, or M4. Additional information. This kit includes: - BCM Extractor Spring (chrome silicon, heat treated & stress relieved, shot peened) . Mkvine May 28, 2021 at 8:19 pm. Style: AR-19157-OF. Add to cart Add to wishlist. Enable Accessibility. BCM Gunfighter 556 Charging Handle - Mod 4B Medium Latch. Details. The highest quality bolt carrier group from BCM for your AR15 or M16. Product Details. Notify Me When Available. Sealed in back with O-Ring. The Doublestar AR15 5.56 Caliber Bolt Carrier Group comes with bolt and firing pin, so it's ready to drop in to the rifle or carbine of your choice. DPMS LR-308, 308 AR Bolt Carrier Groups are the most common 308 BCG's available. BCM Bolt Carrier Group - MPI Full Auto. I pressed down in the correct spot with all of my might, I tried using a pair of pliers to press down, I tried using a punch first so that then . handheld; scopes; Shop all nightvision and thermal; rangefinders. FAIL ZERO BOLT CARRIER GROUP 5.56MM FULL AUTO AR-15 BLACK Fail Zero. Sealed in back with O-Ring. Knurled Threaded Side Charging Handle for Tactical Solutions Group Side Charging BCG. Login Search. 2. BCM. BCM-GFH-MOD4B-556. Description. BCM (MPI) complete bolt carrier group is fully assembled. BCG Made in the USA. AM-15 BOLTS AND CARRIERS; AM-10 BOLTS AND CARRIERS; AM-9 BOLTS AND CARRIERS . The rotating bolt itself features a "star" at the front, shaped like a cog, which allow the BCG to lock and unlock inside the AR-15's star chamber. 6.5 Grendel Type II (.136) MPI Tested Phospate Bolt Head with Phos. extractor mil-spec fluorocarbon series o-ring - 5 pack retail: $4.00. Lowers friction and cleans easier. Gas Key Hardened to USGI Specifications. AT3 AR-15 Bolt Carrier Group - 5.56 NATO/.300 Blackout - Black Nitride. The extractor hooks the rim of each round, capturing it and pulling it out of the star chamber after firing. Features. The Brownells M16 Titanium bolt carrier group is made with 8620 tool steel to make it more durable. So you decided to build a semi-automatic rifle with the proper upper receiver. : GunBroker is the largest seller of AR15 Parts Gun Parts All: 935359816 . our price: $164.99 (out of stock) . 224 Valkyrie & 6.8 SPC M16 / Ar15 BCG Bolt Carrier Group *blem* Blue Stars American Flag PVD Ar15 Bolt Carrier Group BCG: . Lesser brands and lowers costs typically will have very badly staked gas keys, and will commonly cheap out on the other important factors, like having the correct spring, spacer, and o-ring under the extractor. Spikes Bolt Carrier Group M16/AR15 223 Rem/5.56 NATO Nickel Bor $ 202.50. 8620 heat treated (case hardened to SAE-AMS-6875). Spikes Tactical 5.56 Bolt . Mil-Spec Crane O-Ring; Finished in Ion Bonded Flat . $225.99 $119.99. This BCM Bolt Carrier Group. In Stock. $199.99. AR-15 Bolt Assembly. Quick view Add to Cart. Our Price: $54.00. I just got my 223 Wylde build done. 100-020-760WB. AR-15 semi-automatic BCG: This profile is nearly identical to the M16 BCG. This item is currently unavailable for backorder. This carrier includes the proper Mil-Spec gas Key. Manufactured by our finest domestic Mil-Spec contractors these are among the best 5.56 AR rifle bolts on the market and the same bolts we use as the basis of our renowned custom rifles! Our Price: $164.99. Stripped carrier is finished in an Ion Bonded Flat Dark Earth. Search for: Search. Product Code: BCM-BOLT-CARRIER-AUTO-MP-FDE. . Add to Wish List Compare Product. Add to cart. BCM BOLT CARRIER GROUP - FDE : Alternative Views: $ 209.99. . Login for Special . M25988. This is why AR-15 Discounts is proud to offer a constantly growing selection of AR-15 Bolt Carrier Groups from the best BCG manufacturers in the world. Standard buffers typically weigh from 3 to 5 ounces, while our baseline Mil-spec BCM bolt carrier . It lasted maybe 400 rounds between ring replacements, so an owner who . Specifications Caliber: 300 Blackout Barrel Length: 9" Barrel Material: 11595E Spec Steel Barrel Finish: Manganese Phosphate (Mil-Spec A-A-59267) Bore & Chamber: Chrome Lined Weight: 2.2 lbs Twist Rate: 1:7 Gas . Add to Wishlist. $169.99. But in Flat Dark Earth. Here I will give a brief breakdown of the BCG's components, how it works, problems to look for and what to consider when buying. Buy Nickel Plated Full Auto M16 / AR15 Bolt Carrier Group: GunBroker is the largest seller of AR15 Parts Gun Parts All: 935179810. Out of Stock. This BCM Bolt Carrier Group features an ion bond finish in flat dark earth for reduced friction and ease of cleaning. $49.95. We are an authorized BCM Dealer so buy with confidence! BCM (MPI) complete bolt carrier group is fully assembled. The Bravo Company M16 5.56 BCM is high-quality and affordable. The Bolt Carrier Group aka 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. This kit includes: Qty 3 - BCM Extractor Spring (chrome silicon, heat treated & stress relieved, shot peened) . The AR-15 bolt carrier groups you can choose from include: M16 fully automatic BCG: This heavier configuration leads to a slower and smoother cycling rate. 045 . JP Enterprises Low Mass .308 BCG. SALE PRICE: $129.99. Machined to USGI specifications. BCM Bolt Carrier Group (MPI) - Auto $159. AR15 BCGs and Bolt Carrier Groups for AR-9 and AR-10 / AR308. BCM Bravo Company M16 BCG Bolt Carrier Group Full Auto AR-15 AR15. AR-15 Bolt Carrier Stripped. Weight . What to look for and be mindful of. 5.56 Bolt Carrier Group, No Logo - Black Nitride. (part 13) Bolt Assembly comes completely assembled. DESCRIPTION Bravo Company Bolt Carrier Group is fully assembled. Add to Wishlist. Bolt Carrier Group AR 15 Extractor O-Ring AR 15 Extractor O-Ring Product Specs: Fits all standard AR15/M16 sized bolts Fits over extractor spring to increase reliability Manufactured to mil-spec dimensions 100% USA Made . The bolt also has a chrome-plated firing pin, and a mil-spec o . Milspec Carpenter No. AR15 BOLT CARRIER GROUP 5.56 & 300 BLACKOUT BCG - MELONITE NITRIDE. BCM (MPI) complete bolt carrier group is fully assembled. FailZero EXO 9mm AR9 BCG Price: $ 199.99 Add to cart. Quick view Add to Cart. Starting with a 9310 Steel Bolt, which is aircraft-grade material, th. BCM BOLT CARRIER GROUP - FDE : Alternative Views: $ 209.99. . Add to Cart. We are an authorized BCM Dealer so buy with confidence! . The BCM Extractor Spring is so strong the Mil-Spec Crane O-Ring will probably not be needed, but it is included. 3. This bolt carrier group is made for the select fire M16 and the semi . And it comes ready to be dropped into the rifle. Mil-Spec Crane O-Ring: Customer Reviews (0.00) stars out of 5 # of Ratings: 0 Crane Ind O-Ring (Mil-Spec) . thank you for watching and have a good day.Check me out. American Built Arms AR-15 Nickel Boron 5.56mm Bolt Carrier Group. Reply. Shop our vast selection and save! most non peened bolts last 5-10K. MIL-SPEC crane O-ring; BCM-BCG-AUTO-MP-FDE-IB. Remove from Compare Add to Compare. Product Code: BCM-BOLT-CARRIER-AUTO-MP-FDE. We offer amazing deals on various bolt carrier groups and kits so you can complete your AR upper. Courtesy Firearms History. $119.99. BCM, Daniel Defense, Noveske, Colt, FN. UPC: MPN: BCM-BCG-AUTO-MP-FDE; Primary Arms Compare prices . After the round count starts to pile up, your rifle may benefit from a Carrier rebuild. Looking forward on seeing how the BCG handles. Machined to USGI specifications. Wilson Combat - on the 12 days of Christmas sale, great buy. BCG - Bolt Carrier Groups. BCM. Parkerized exterior and chrome lined inside carrier. Most Of the 308 Ar Rifles On The Market Today Are The Lr-308 Platform or Dpms Platform. Check Price. Posted by David B on Sep 7th 2021 Excellent rebuild kit with all the high quality components you need for dependable extraction. COLT M16 5.56 Bolt Carrier Group. 5 Great kit. Unfortunately some manufacturers and vendors refer to them incorrectly as AR-10 Bolt Carrier Groups. JoeBobOutfitters Enhanced Complete Bolt Carrier Group (AR15/M16 BCG)-MPI Tested Usually Ships in 24 Hours MSRP: $189.95 BCM (MPI) complete bolt carrier group is fully assembled. Notify Me. m16 bolt carrier group 5.56 & 300 blackout bcg - ion gold titanium nitride (tin) retail: $175.00. $49.95. Carrier: LR-308 Carrier DPMS compatible. $261.99. Shop bolt carrier groups & parts from BCM including: gas rings, firing pins, bolt upgrade kits, bolt assembly, retaining pins & more for your AR15. BCM Bolt Carrier Group (MPI) - Auto - FLAT DARK EARTH-IB. Product Details. View Product. This item is currently unavailable for backorder. In Stock. Check Price. 4 Anderson Manufacturing - M16 5.56 Bolt Carrier Group. New. Firing . 10 0 4. Circle_10. Bravo Company M16 Bolt Carrier Group - $174.99 with code "TAG" + S/H 100-020-758WB Cartridge: 223 Remington, 5.56 mm NATO, 300 AAC Blackout Finish: Black View Dream Gun Description Specs BCM (MPI) complete bolt carrier group is fully assembled. Login 0 View Cart $0.00; Checkout Search. Buy BCM M16 Bolt Carrier Group BCG BCM-BOLT-CARRIER-GROUP-AUTO-MP NEW! Sale Price: $29.95 . Bolt: . Delta Ring; Handguard Weld Spring; Handguard Snap Ring; Pistol Grip Screw; Barrel Nut; Ejector Spring Pin; Bolt Catch Roll Pin; Access Door . So my cut list of the best BCG goes like this: Brownells 5.56 Bolt Carrier Group Nitride MP. over 1000 yards; . This M16/M4 carrier includes the proper Mil-Spec gas key. . Thanks in advance for the help. 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. Remington 700 ADL .308. Cartridge: 223 Remington, 5.56 mm NATO, 300 AAC Blackout. Qty: EMAIL ME WHEN BACK IN STOCK! Login for Special Pricing. 1. Customers who viewed this item also viewed. Try this before you do anything expensive or start grinding on it.Please check out my other videos and. Alert Me When Available. Next. 13 Best AR-15 Bolt Carrier Groups (BCG) 1. BCM Bolt Carrier Groups are test fired for function by BCM. SP-38 Categories: BCG Components, Default Category Tag: AR 15 Extractor O-Ring KM Tactical AR 15 BCG Bolt Carrier Group Extractor Ring . $1.50. BCM. Bolt Carrier Group. Picture of the person's id card. Our bolt is precision machined from Carpenter 158, shot peened for increased . Toolcraft Logo'd Left Handed 5.56 Nitride MPI Full Auto Bolt Carrier Group. Choosing the right bolt carrier group for your AR-15 or . 1. BCM Gunfighter 556 Charging Handle - Mod 4B Medium Latch. Marlin 336 .30-30. This M16/M4 carrier includes the proper Mil-Spec gas key. I spent, no joke, 30 minutes trying to put it back in during reassembly. 04-05-20, 05:53 #4. Machined to USGI specifications. BCM (MPI) . IN STOCK. BCM also recommends running the Crane O-ring (provided with all BCM Bolt Carrier Groups) over the extractor with 300 Blackout. coronavirus john hopkins map cnn; call of duty mw3 weapons stats; killer and healer novel english translation. . $199.99. . AR15 BCGs and Bolt Carrier Groups for AR-9 and AR-10 / AR308. Rainier Arms AR-15 Precision Match Grade Black Nitride BCG RAINIER ARMS . This carrier includes the proper Mil-Spec gas Key. Gas key is chrome lined and heat treated per GI specifications. It's been a perfect upgrade to my already stellar BCM bolt carrier. Buy AR-15 bolt carrier groups for sale at Mid State Firearms. The bolt carrier and the . $169.95 . Finish: Flat Dark Earth. Faxon 5.56/300 BLK Gunner Light Weight Bolt Carrier Group Nitride Chameleon PVD M16 Bolt Carrier Group AR15 BCG Lightweight. AR15 Bolt Component Kit. . Additional information. Right to Bear Arms and Supply proudly sells these core components from top-of-the-line brand names, including Anderson Manufacturing, Rock River Arms, Spike's Tactical and WMD Guns. As such, the Bolt Carrier Group will show handling marks consistent with these quality control procedures. M16 BOLT CARRIER GROUP FDE. Extractor o-ring - Fluorosilicone M25988/1-006. the one they im reading on is listed as a M16 PROFILE CARPENTER 158 MAG PHOSPHATED 5.56 NATO MPI FULL-AUTO BOLT CARRIER GROUP . Faxon Bolt Carrier Groups are Superfinished to reduce friction, increase smoothness of operation, and reduce fouling. Reply. Machined to USGI specifications. SALE PRICE: $109.99. Cartridge: 223 Remington, 5.56 mm NATO, 300 AAC Blackout. While the bolt carrier group is made to Mil-specs standards, it actually exceeds them substantially. Insert the Cam Pin through the Bolt Carrier opening and into the Bolt so that the flat bar on top of the Cam Pin is inline with the Bolt Carrier. 2. Extractor $ 129.95 $ 85.00 Add to cart. davis memorial hospital elkins, wv medical records (See the first bullet above). Also, these lesser brands won't use the correct steels or hardness in their parts. SKU kit-bcrebuild Categories .223 / 5.56mm Bolt Carriers & Parts, Spare Parts Kits. Parkerized exterior and chrome lined inside carrier. Bolt Carrier Group (MPI) - Auto - FLAT DARK EARTH-IB. our price: $2.99 . . Extractor o-ring may be needed for some applications but not all. Remove from Compare Add to Compare. Mosin Nagant 91/30. For decades Colt AR-15/M4 Rifles have used More details. The finish on this bolt carrier group is phosphate. Sale! The main difference is its reduced . A complete BCG pulls a round from the magazine and loads it into the chamber before . Turn the Bolt, aligning the larger opening with the Bolt Carrier opening just below the Carrier Key. BCM . (BCG) Bolt carrier group (auto version) for your AR15, M16, or M4. Ar15 One piece Enhanced Spiral Gas Ring: blem Multi . . Add To Cart. Aero Precision 5.56 Complete Phosphate BCG. the bolts are hardened by shotpeening which means they are typically going to last into the 25-30k range before needing replacement. The . ar15discounts.com . . Certified For Use By US Military & Law Enforcement . the bcm bcg are all milspec and individually tested. BCG - Bolt Carrier Groups. M-16 bolt Carrier Assembly. Add to Cart. Login 0 View Cart $0.00; Checkout Search. . $299.00 On sale: $284.95 . Ruger MkIII 22/45. M16/4 Full-Auto BCG Price: $ 169.99 Add to cart. Brownells is your source for Bolt Carrier Groups,Bolt Parts at Brownells parts and accessories. Out Of Stock. ring mounts; tactical; Shop all mounts and bases; nightvision and thermal. The F-1 Firearms DuraBolt direct impingement full auto rated M16/M4 bolt carrier group, for use in AR15 platforms, is compatible with MIL-SPEC receivers and associated components. Jahipidamine tooted kaubamrgid Info. 045-B2K630AA00 | Anderson Mfg. BOLT CARRIER ASSEMBLY, AR-15/M16, 5.56 NATO, AUTO, MIL-SPEC, BLACK PHOSPHATE. An M16 BCG will function in an AR-15, but it doesn't make it fully automatic. 158 steel. If the specifications do not actually specify DPMS LR-308/SR-25 contact the manufacturer for clarification. Here are all the high quality parts required to bring your Bolt Carrier back to like-new function: M16 Firing Pin, Firing Pin Retaining Pin . . Picture of the weapon purchasing . Quickview. they come fitted with the black inserts and with the o-rings in the bag as an option needed to ensure ultra reliable . BCM Bolt Carrier Group (MPI) - Auto - FLAT DARK EARTH-IB, Stripped . FAXON FIREARMS . The Bolt Carrier Group aka 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. BCM M16 BCG. This product has an average rating of 4 stars out of 5 stars from 4 ratings. It rotates approximately 15 degrees to lock and unlock inside the chamber. Check Price. Bolt Component Kit includes commonly replaced parts for AR15 bolts. Kaw Valley Precision AR-15 One Piece Gas Ring Usually Ships in 24 Hours MSRP: $5.95 . Remington 870 12 gauge. Lowers friction and cleans easier. Qty: EMAIL ME WHEN BACK IN STOCK! AR15 5.56 / .223 Nitrided BCG Complete Bolt Carrier Group. The carrier itself features a full mass M16 cut for the best possible reliability in your AR-15 build. M16 6.5 GRENDEL / 6MM ARC BOLT CARRIER GROUP NITRIDE MP. Nice video Thanks. M16 BOLT CARRIER GROUP FDE. Login Search. Outdoor Experiment May 28, 2021 at 8:19 pm. If you ask most people online what's their go-to BCGthe vast majority is going to be BCM's M16 BCG. . The NBS .223/5.56 Black Nitride Bolt Carrier Group was designed with strength in mind. . Weight . The staked, chrome-lined gas key of the Doublestar AR15 5.56 BCG prevents gas leakage . . Our Price: $22.95. It is designed to offer the most resilient quality. MAGPUL PMAG 20rd 7.62 LR/SR Gen M3 Magazine - Black . Machined to USGI specifications. BCM (MPI) complete bolt carrier group is fully assembled. Mil-Spec Crane O-Ring; Finished in Ion Bonded Flat . $189.95. Kogus tk. $19.99 $14.99. My preference for bolt maintenance is the Bravo Company Manufacturing (BCM) SOPMOD Bolt Upgrade/Rebuilt Kit. Bravo Company Manufacturing (BCM) M16 BCG. Mil-Spec Crane O-Ring. BCM Bolt Carrier Groups are test fired for function by BCM. DESCRIPTION Bravo Company Bolt Carrier Group is fully assembled. BCM (MPI) complete bolt carrier group is fully assembled. Details. Product Details. This BCM Bolt Carrier Group features an ion bond finish in flat dark earth for reduced friction and ease of cleaning. Sale Price: $3.95 . BCM Bolt Carrier Group (MPI) - Auto. Parkerized exterior and chrome lined inside carrier. PSA - not bad for the cost. Live Chat Live Chat. AR15 5.56 PRO Series Bolt Carrier Group - Black Nitride. $149.99. Add to Favorites Add to Wish List. BROWNELLS (In Stock) 4.6 (20) AR-15 9MM BOLT CARRIER GROUP FOR GLOCK AND COLT. The image below gives a nice breakdown of the parts in a typical BCG. The kit may be purchased in two ways: The basic package is an Extractor Spring Upgrade Kit that includes the extractor spring, extractor insert and Crane Industrial mil-spec O-ring with a miniscule MSRP of $4.95. MIL-SPEC crane O-ring; BCM-BCG-AUTO-MP-FDE-IB. Your Price: $189.00 Out of Stock. This is why AR-15 Discounts is proud to offer a constantly growing selection of AR-15 Bolt Carrier Groups from the best BCG manufacturers in the world. Mfr Part: BCM-BCG-AUTO-FD. MSRP: $199.00 Your Price: $189.00. Chrome Lined Carrier (AUTO) Chrome Lined Gas Key. Add to Wish List Compare Product. MSRP: $199.00 Your Price: $189.00. Mil-Spec Crane O-Ring. BCM. Search Products. BCM-GFH-MOD4B-556. Bolt carrier group for your AR15 or M16. Alert Me When Available. The bolt from this BCG is made of 9310 steel and the carrier is 8620 steel, and are magnetic particle inspected. Full-Auto Black Nitride BCG Price: $ 119.99 Add to cart. Parkerized exterior, chrome lined inside carrier . . BCM M16/AR-15 SOPMOD Bolt Upgrade/Rebuild Kit Usually Ships in 24 Hours MSRP: $35.95 . Black XD-9 Tactical. Machined to USGI specifications, the carrier has a chrome lined interior and heat treated gas key secured with properly staked grade 8 fasteners. Lantac Enhanced Bolt Carrier Group, .223 / 5.56mm, Nickel Boron.