Bolt Carriers Gun Parts
(728 deals total)

  • Bolt Carriers
from $116.95
MPN: 6226
Brand: FosTech
from $207.87
MPN: E-BCG
Brand: LANTAC
Model: M16
Description: .223REM/556NATO Enhanced M16 Bolt Carrier Group
Type: Bolt Carrier Group
from $181.99
MPN: 04-013-19032
Brand: Daniel Defense
Model: Bolt Carrier Group
Type: Bolt Carrier Group
Overall Length: 8.4000
from $149.95
MPN: BP-C15-D
Brand: Bootleg Inc.
Description: Bolt Carrier Group
Type: Bolt Carrier
Finish: Black
from $529.99
MPN: R27553
Brand: Remington
Model: 700
Description: 700 Short Action Carbon Steel 308 Bolt Face
Action: Bolt
from $120.18
MPN: FF9MMBCGCNITRIDE
Overall Length: 10.5000
from $346.00
MPN: 05-492-H1
Brand: Geissele
Caliber: 5.56mm
Firearm Type: AR-15
Material: Steel
from $365.00
MPN: 05-490
Brand: Geissele
Caliber: 5.56mm
Model: Reliability Enhanced Bolt Carrier Group
Firearm Type: AR-15
from $134.99
MPN: 22BA6E1
Brand: Cmmg Inc.
Caliber: .22 LR
Capacity: 25
Finish Per Color: Stainless

Filter Bolt Carriers Gun Parts

1 hour ago , by Dealer
AR-15 Bolt Carrier Groups Roundup from $95.99
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1 day ago
Description Manufactured by our finest domestic, Mil-Spec contractors these are among the best AR rifle bolts on the market and the same bolt carrier groups we use as the basis of our renowned custom rifles! The bolt is precision machined from aerospace grade 9310 tool steel, shot peened for increased strength and includes a tool steel extractor and ejector, appropriate extractor spring, and is MPI (Magnetic Particle Inspected) and randomly batch HPT (High Pressure Tested). The extractor is 4140 gun quality, annealed, cold drawn steel per the Mil-Spec.
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1 day ago
The Bear Creek Arsenal Complete M16 Bolt Carrier Group is a quality part for your next build. The full mass M16 pattern 8620 steel bolt carrier has been treated with a super slick salt bath nitride finish for easy cleaning, reduced friction, and a reduced need for lubrication. The 9310 steel 5.56 NATO pattern bolt assembly has a durable manganese phosphate finish. A properly staked gas key and forward assist serrations round out the great features.
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2 days ago
SKU: 5165449729 UPC: 5165449729 MFR#: 5165449729 Nickel Boron Finish Milspec Carpenter No. 158® steel bolt Shot Peened Bolt High pressure tested Mag particle inspected Gas Key Hardened to USGI Specifications Gas Key Grade 8 Hardened Fasteners Gas Key Staked Per Mil-Spec Tool Steel Extractor Extractor Spring Extractor O-ring Insert ToolCraft Logo PA-15 Engraving ToolCraft Premium Carpenter 158 BCG with Nickel Boron coated finish.  BCG has the ToolCraft Logo and PA-15 engraved on to the side of the BCG. SKU: 5165449729 UPC#: 005165449729
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2 days ago
Weight 11.408 oz Bolt Material 9310 Steel Cartridge Compatibility .223/5.56 NATO/.300 BLK Finish Salt Bath Nitride Carrier Profile M16 High Pressure Tested Untested Magnetic Particle Inspected Magnetic Partical Inspected Platform AR-15 Bolt Finish Nitride / Melonite MPN AR15-Bolt-Carrier-Group UPC 4300 SKU: 4300 AR15-Bolt-Carrier-Group
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3 days ago
Introducing the M16 Bolt Carrier Group that seamlessly integrates into your M16, AR15, or M4 platform rifle. Each part undergoes meticulous machining and appropriate heat treatment in accordance with Mil-Spec, and is then fully coated with Nickel Boron using UCT's proprietary EXO Technology.
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4 days ago
Guntec USA GT-BCG-GP AR-15 Bolt Carrier Group Mil-Spec Bcg (Gold Plated) 8620 Steel Bolt Carrier Grade 8 Screws To Mil-Spec Just Released! 9310 Bolt MPI (Magnetic Particle Inspected) USA Made Aesthetic Coating Which Improves Durability & Lubricity Hydraulically Staked CL Key Gold Plated Finish On Bolt Carrier, Nitride Finish On Bolt, Firing Pin Retainer, Staked Screws & CAM Pin 1 Year Warranty
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5 days ago
SKU 8779 Brand Palmetto State Armory Model Number TCFA-011556HPT UPC 8779 DETAILS PALMETTO STATE ARMORY 5.56 PREMIUM FULL AUTO BOLT CARRIER GROUP Features: - Milspec Carpenter No. 158® steel bolt - Shot Peened Bolt - High pressure tested - Mag particle inspected - Chrome Lined Carrier (AUTO) - Chrome Lined Gas Key - Gas Key Hardened to USGI Specifications - Gas Key Grade 8 Hardened Fasteners - Gas Key Staked Per Mil-Spec - Tool Steel Extractor - Extractor Spring - Extractor O-ring Insert - SKU 8779 FEATURES
110
5 days ago
Sons of Liberty Gun Works Bolt Carrier Group is a premium BCG that leaves no stone unturned when it comes to quality control and performance. Bolt: Precision machined from Carpenter Technology No. 158 chrome-nickel alloy Heat treated per mil-spec, Shot peened per ASTM B851/SAE AMS2430S, Vibratory tumbled Individual high pressure/proof (HP) test Full Auto test fired at assembly Individual magnetic particle inspection ASTM E1444/E1444M (MP) Markings deep laser engraved (SP=Shot Peened, HP=High Pressure Tested, MP=Magnetic Particle Inspection.) Extractor:
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5 days ago
Premiere Manufacturing Complete AR15 BCG 5.56 / .223 - Polished Black Nitride The best BCGs for replacement parts and builds have strong and dependable carriers with trusty bolt assemblies that cycle reliably. That's exactly what you'll get with this high quality complete BCG. Premiere Manf M16 bolt carrier groups are polished before and after the H&M BLACKNITRIDE+™ process, producing a beautiful finish and reducing the friction coefficent. The carrier is made from 8620 steel. The bolt is made from 9310 steel.
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5 days ago
Weight 12 oz Bolt Material Carpenter 158 Steel Cartridge Compatibility .223/5.56 NATO/.300 BLK Finish Chrome Carrier Profile M16 High Pressure Tested Individually HP Tested Magnetic Particle Inspected Magnetic Partical Inspected Platform AR-15 Bolt Finish Chrome MPN SOLGWBCG556-CHROME UPC 676821073297 SKU: 19067
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6 days ago , by Dealer
Toolcraft 5.56 NATO Black Nitride Bolt Carrier Group 9310 - $68.99 or C158 - $68.99 Please check out all our other DEALS: ARM OR ALLY GUN DEALS click the link above. ALL TOOLCRAFT BCG'S HERE Simply the best 5.56 NATO bolt carrier group on the market! Available in either 9310 or C158 Steel Bolt.
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6 days ago
Lantac Full Auto Bolt Carrier Group .223/5.56 is machined from 8620 steel with a TiN (Titanium Nitride) finish. This BCG features shrouded forward-facing gas ports allowing the system to run with a smoother energy pulse. The tail of the carrier has a flared boss helping improve the lock position with the upper and increasing accuracy.
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1 week ago
DISCLAIMER: This product is not manufactured, authorized, endorsed, or warranted by GLOCK. GLOCK does not warrant or represent that this product is compatible with GLOCK pistols. Feature rich, high-quality, and affordable, Foxtrot Mike Products offer cutting edge solutions utilizing the highest quality materials and manufacturing processes available.
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1 week ago
Description The Microbest BCG has been designed from the ground up with the most avid shooters in mind, using only the best materials available on the market today. The bolt assembly is machined from Carpenter No. 158® steel, shot-peened, MP marked, HP tested, and has a tool steel extractor that is machined from bar stock. Features: - 4340 Extractor spring, mil-spec insert and extractor retainer pin in mag phosphate - Mag phosphate ejector - Mil-spec stainless gas rings - 8620 carrier in FA profile chrome lined - 4130 gas key with grade 8 retainers and sealed
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1 week ago
Bolt Material Carpenter 158 Steel Brand Sionics Weapon Systems Caliber Gauge5.56 NATO Carrier Finish Nickel NP3 Carrier StyleM16 Bolt Carrier High Pressure Tested High Pressure Tested Magnetic Particle Inspect Magnetic Particle Inspected PlatformAR-15 Weight11.6 oz
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1 week ago
SKU 51655115274 Brand Palmetto State Armory Model Number 51655115274 UPC 51655115274 DETAILS Manufacturer: Toolcraft Caliber: 5.56/.223 Bolt Finish: Nitride Bolt Steel: Carpenter No. 158 Steel Profile: Full Auto Profile Gas Key: Grade 8 Hardened Fasteners, Staked per MilSpec FEATURES This Toolcraft Logo'd Nitride BCG is made with a carpenter 158 bolt with a full-auto profile, designed to be used in AR-15 & M-16 style rifles. Bolt is magnetic particle inspected (MPI) for a uniform quality and operational reliability. UPC#: 051655115274
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1 week ago , by Dealer
The NBS .223/5.56 Black Nitride Bolt Carrier Group was designed with strength in mind. Starting with a 9310 Steel Bolt, which is aircraft-grade material, this bolt has a high core strength rating, a high fatigue strength, and a high hardenability rating. 9310 steel, when treated properly, is about 7% better than Carpenter 158 steel, so you know that you will have a dependable BCG, when you drop this into your rifle.
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1 week ago
Anderson Manufacturing builds rifles, pistols, and parts utilizing the latest in computerized manufacturing. By keeping manufacturing in house, Anderson can offer quality, American-made products at an affordable price, backed by a limited lifetime warranty.
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1 week ago
Description Right here is a True Mil-Spec BCG. Each and every bolt, test fired from the factory. This unit is for builders who prefer tried and true manufacturing and aggressive quality assurance testing over fancy coatings, proprietary profiles and laser engraved logos. AO Precision has provided BCGs to large military contractors such as FN America and large commercial retailers who re-brand and sell these at a considerable mark-up. You can now get these directly from AR15Discounts.com and save big! Bolt - Machined from Carpenter Technology No. 158 alloy. - Heat treated
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2 weeks ago
AR15 M16 BOLT CARRIER GROUP COMPLETE AR15 Complete Bolt Assembly, Brand New • AR-15 Complete Bolt and Carrier • Bolt, Bolt Carrier and Firing Pin Ready to Drop Into the Rifle or Carbine Upper of your Choice • Staked Gas Key prevents Gas Leakage that leads to Short Stroking Specs: 100% Made in the USA in Fort Collins, Colorado Coating: Black Nitride Print Spec: made to Mil-spec drawing except no chrome lining. Carrier Material: 8620CD Bolt Material: 9310 This item cannot be shipped to California, Connecticut, Massachusetts, New Jersey, New York or the state of Washington.
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2 weeks ago , by Dealer
Our premium quality BCG in a new crazy rainbow galaxy cosmic psychedelic purple haze oil slick tactical unicorn chameleon multi color eye-catching finish! If you want a unique Ar15 bolt carrier group that will stand out, this one is for you. - 8620 steel m16 auto carrier - 9310 steel bolt - heat treated - MPI Tested - PVD finish (similar to Titanium Nitride) - Grade 8 fasteners - Properly staked gas key - 5.56/223
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2 weeks ago
Description This Bear Creek Arsenal BCG features a full mass M16 profile bolt carrier machined from 8620 steel and finished with Salt Bath Nitriding. The gas key is properly staked and the carrier does have forward assist serrations. The 5.56 NATO bolt assembly is made of 9310 steel and features a manganese phosphate finish. Every BCG goes through magnetic particle inspection (MPI). Bolt Finish – Manganese Phosphate Bolt Material – 9310 Steel Caliber – 5.56 NATO (will also work with .223 and 300 BLK) Carrier Finish – Salt Bath Nitride Carrier Material – 9310 Steel Carrier
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2 weeks ago
This Bear Creek Arsenal BCG features a full mass M16 profile bolt carrier machined from 8620 steel and finished with Salt Bath Nitriding. The gas key is properly staked and the carrier does have forward assist serrations. The 5.56 NATO bolt assembly is made of 9310 steel and features a manganese phosphate finish. Every BCG goes through magnetic particle inspection (MPI). Bolt Finish – Manganese Phosphate Bolt Material – 9310 Steel Caliber – 5.56 NATO (will also work with .223 and 300 BLK) Carrier Finish – Salt Bath Nitride Carrier Material – 9310 Steel Carrier
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2 weeks ago
SKU 516446914 Brand Palmetto State Armory Model Number 516446914 UPC 516446914 DETAILS Manufacturer: Palmetto State Armory Product Line: PA-15 Platform: AR-15 Caliber: 5.56/.223 Finish: Nickel Boron Coating Bolt Steel: Milspec Carpenter No. 158 Bolt: Shot Peened Mag Particle Inspected: Yes FEATURES
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3 weeks ago
Bolt Carrier Group Features This high quality bolt carrier group is a valuable addition to your AR15 build. Bolt Carrier Group Specifications No Aero 'A' Logo M16-cut carrier Machined from 8620 Tool Steel (Carrier) and 9310 Steel (Bolt) Carrier has forward assist serrations Black Nitride Finish - advanced lower friction coating that minimizes the need for lubricants and cleaning Properly staked gas key Shot peened HPT tested Black o-ring insert on extractor MPN#: APRH100616C UPC#: 840014606245
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3 weeks ago
Aero Precision AR15 PRO Series Bolt Carrier Group Features The Aero Precision PRO 5.56 Bolt Carrier Group is built from the ground up to meet the demands of the most extreme conditions. Each component and manufacturing process of the PRO 5.56 Bolt Carrier Group was deliberately chosen to increase the reliable service life of the bolt carrier group and its components.
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3 weeks ago
Aero Precision EPC Bolt Carrier Group Direct Blowback 9mm Nitride Finish Black Fits AR9 Features: Aero APRH200060C: The Aero Precision EPC/AR9 Bolt is the core of any EPC build. Machined from 8620 steel and featuring a black nitride finish, fracture-resistant grade 23 titanium pin, and 4140 steel extractor and bolt guides, the EPC bolt assembly is precision machined from the ground up to meet the extreme demands of blowback AR platform firearms. This bolt also has a heavy duty extractor coil pin.
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3 weeks ago
Weight 24 oz Bolt Material Stainless Steel Cartridge Compatibility 9mm Finish Salt Bath Nitride Carrier Profile Enhanced High Pressure Tested HP Tested Magnetic Particle Inspected Magnetic Partical Inspected Platform AR-15 Bolt Finish Nitride / Melonite MPN JPBC-9-SCS2 UPC 812872025599 SKU: 3759
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3 weeks ago
Weight 17 oz Bolt Material SAE 9310 Steel Cartridge Compatibility .308/6.5 Creedmoor Finish Salt Bath Nitride Carrier Profile Other High Pressure Tested HP Tested Platform AR-10 / LR-308 Bolt Finish Salt Bath Nitride MPN JPBC-7AH2 UPC 812872024387 SKU: 23927
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3 weeks ago
Description The NBS M16 bolt carrier group is the perfect BCG for your next build. Properly built, no corners cut, 100 percent US made. With our lifetime guarantee, you can’t go wrong. M16 / AR15 6.5 Grendel - 8620 M16 style carrier - H&M Black Nitride finish - Properly heat treated - Final grind before plating - 9310 6.5 Grendel bolt - Heat treated - Shot peened - H&M Black Nitride finish - MPI - 4140 billet gas key - H&M Black Nitride Finish - Properly seated with Grade 8 fasteners - Properly staked to ensure reliability
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3 weeks ago
Description The Aero Precision PRO 5.56 Bolt Carrier Group is built from the ground up to meet the demands of the most extreme conditions. Each component and manufacturing process of the PRO 5.56 Bolt Carrier Group was deliberately chosen to increase the reliable service life of the bolt carrier group and its components. Bolt
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3 weeks ago
Our upgraded nickel boron bolt carrier group is an eye catching addition to your AR build. Mil-spec dimensions and coating ensure the highest quality and correct component interface. Features: Machined from 8620 Tool Steel (Carrier) and 9310 Steel (Bolt) Carrier has forward assist serrations Shrouded firing pin Nickel Boron Coating inside and out (Bolt, Carrier, and Gas Key) Forged Mil-Spec gas key attached with Grade 8 hardware and Properly staked. 5.56 Bolt is shot Peened and MPI Mil-Spec Extractor Spring, black extractor insert, Viton O-Ring Tool Steel Extractor High quality BCG
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3 weeks ago , by Dealer
Enhance the reliability of your bcg. Standard ar-15 / m4 / m16gas key with optimized carrier key screws from Michiguns. These specialized fasteners have extra grooves on the exterior, allowing for a better hold once the key is properly staked. Don’t want those jokers wobbling loose all Willy nilly after a bunch of rounds!
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1 month ago
The Cross Machine Tool Co. complete bolt carrier group is a high quality upgrade for your next build. The carrier is machined from tough 8620 steel with a full mass M16/full auto for optimal reliability and strength. The 9310 steel bolt assembly is magnetic particle inspected. The complete assembly is ready to drop in to your favorite .223 Rem, .223 Wylde, 5.56 NATO, or 300 BLK build! Features: - 5.56 NATO / 300 BLK - M16-cut 8620 Carrier - 9310 Bolt Assembly - Magnetic Particle Inspected - Properly staked gas key - Salt bath nitride finish - Made in the U.S.A.
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1 month ago
Weight 11 oz Bolt Material Carpenter 158 Steel Cartridge Compatibility .223/5.56 NATO/.300 BLK Finish Mag Phosphate Carrier Profile M16 High Pressure Tested HP Tested Magnetic Particle Inspected Magnetic Partical Inspected Platform AR-15 Bolt Finish Mag Phosphate MPN 04-013-19032 UPC 852548002868 SKU: 22760
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1 month ago
Aero Precision APRH101767C: The Aero Precision PRO 5.56 Bolt Carrier Group is built from the ground up to meet the demands of the most extreme conditions. Each component and manufacturing process of the PRO 5.56 Bolt Carrier Group was deliberately chosen to increase the reliable service life of the bolt carrier group and its components.BoltThe bolt is one of the most important parts of the bolt carrier group. Machined from 9310 steel, a proprietary flash nitride process was chosen to ensure proper heat treatment on the bolt.
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1 month ago , by Dealer
Item #: note: these may have light blemishes Blue bolt carrier groups with stars lasered on them. Grab one of these star spangled bcgs today! Our solid, reliable m16 bolt carrier group with an enhanced low friction high durability coating. This is just what you need to make your ar15 build your own. Awesome blue color that changes depending on oilyness & lighting. varies from dark/light blue to purply. BCG Features: 8620 m16 Carrier c158 bolt, MPI/HPT Tested, Shot Peened, Nitrided staked gas key, grade 8+ fasteners, enhanced extractor spring with oring
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1 month ago
These Military surplus 158 Bolt carrier groups are manufactured by AO Precision to the exacting standards of the US Military. AO makes these HPT / MPI BCG's for other Military contractor juggernauts, such as FN America. All bolts are rigorously inspected and are individually High Pressure Tested and then go through a Magnetic Particle Inspection. Mil Spec Bolt 158 Carpenter Steel Shot Peened High Pressure Tested (HPT) Magnetic Particle Inspected (MPI) Mil Spec Carrier 8620 Aircraft Grade Steel Full Mass M-16 Mil Spec Extractor
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1 month ago
The NBS M16 bolt carrier group is the perfect BCG for your next rifle. 100% US made. M16 / AR15 6.8 SPC & .224 Valkyrie M16 style carrier Black Nitride finish 6.8SPC / .224 Valkyrie bolt Heat treated Shot peened Black Nitride finish MPI billet gas key Black Nitride Finish Properly seated Properly staked Cam Pin nitride treated for wear resistance Billet Machined Extractor Machined from solid 4140 bar stock, heat treated and shot peened Phosphate coated for reliable extraction Extractor insert included O-Ring included 100% USA Made   SKU: M16-BCG-6.8
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1 month ago
assembled m16 bolt carrier group, pvd finish 8620 carrier gas key properly staked 9310 (or c158 if 9310 not available) bolt, nitride extractor assembly ejector assembly firing pin / retaining pin cam pin Item #: FDE bcg
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1 month ago
WMDs Bolt Assembly - Optimized for performance. The bolt was engineered for NiB-X nickel boron coating to provide long life, ease of cleaning and superior locking and unlocking action with barrel extensions.Case hardened 9310, shot peened, magnetic particle inspected, with high-performance extractor, ejector springs, gas rings and special O-ring buffer. NiB-X coated bolt and extractor Specifications for WMD Guns NIB-X Bolt Assembly: Finish: NiB-X Fabric/Material: 9310 Steel 1UX-ABA-BA4N-1-NIBXBA65
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1 month ago , by Dealer
FDE M16 5.56 / 223 bolt carrier group is the perfect BCG for your next build and is compatible with any AR15 build. The “Armor Guard” PVD coating on these BCGs provides a very low coefficient of friction while providing a unique look and increased reliability. Properly built, no corners cut. - 8620 M16 Style Carrier - FDE Armor Guard Coating (PVD) - Heat Treated - Final Grind Before Plating - 9310 5.56/.223 Bolt - Heat Treated - Shot Peened - Blacknitride+™ by H&M - MPI - 4140 Billet Gas Key - Armor Guard Coating - Properly Seated with Grade 8 Fasteners - Properly Staked
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1 month ago
The Faxon Firearms 7.62x39 Bolt Carrier Group is designed for long lasting reliability. The Bolt itself is made out of 9310 tool steel and Nitride coated to increase surface hardness even more. Additionally, they are shot peened and magnetic particle inspected to ensure safe and reliable function for thousands of rounds. The locking lugs are chamfered by 45 degrees to improve lockup for improved function and reliability with high pressure rounds. The extractor is made from S7 steel, which is optimal for resisting the violent shock of pulling cartridges out of the chamber after being shot.
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1 month ago , by Dealer
Features: - All-Chrome Except for Phosphate Extractor LUXE UPGRADES - Sprinco 27001 Extractor Spring, 5-coil - Sprinco Extractor Insert: Mil-Spec Black - Sprinco 27001 Ejector Spring, Enhanced Chrome Silicon Moly Plated Cryogenic Processed - OCKS Gas Key Fasteners
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1 month ago
NOTE: All BCM bolt carrier groups are factory test fired. The BCG may show handling marks consistent with these quality control procedures. The Bravo Company Manufacturing Bolt Carrier Group, with a parkerized exterior and chrome lined carrier interior, has been machined to USGI specifications. This M16/M4 carrier includes a properly staked gas key which has also been chrome lined, heat treated per MIL-SPEC, and secured to the carrier with grade 8 fasteners. Features: - MIL-SPEC carpenter no. 158 steel (bolt) - High pressure tested and magnetic particle inspected
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1 month ago
SKU 5165500057 Brand PSA Custom Model Number PSACUSTOMMPIBCG UPC 810029499828 DETAILS - Caliber: 5.56 NATO - Bolt:  C158 Bolt MP - Carrier Material: 8620 Steel - Profile: Full-Auto - Chrome Lined: Yes - Firing Pin: 8740, Hard Chrome Coated FEATURES The PSA Custom Series has teamed up with Microbest to produce the PSA Custom Fathers of Freedom 5.56 Full Auto Profile Phosphate Coated Bolt Carrier Group. This BCG has been designed from the ground up with the most avid shooters in mind, using only the best materials available on the market today.  Features:
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1 month ago
Description This high quality bolt carrier group is a valuable addition to your AR15 build. Features: - No Aero ‘A’ Logo - M16-cut carrier - Machined from 8620 Tool Steel (Carrier) and 9310 Steel (Bolt) - Carrier has forward assist serrations - Black Nitride Finish – advanced lower friction coating that minimizes the need for lubricants and cleaning - Properly staked gas key - Shot peened - HPT tested - Black o-ring insert on extractor - High quality BCG Bolt Finish Nitride / Melonite Bolt Material 9310 Steel Cartridge Compatibility .223/5.56 NATO/.300 BLK
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1 month ago
Our solid, reliable m16 bolt carrier group with an enhanced low friction high durability coating.  This is just what you need to make your ar15 build your own.  Awesome blue color that changes depending on oilyness & lighting.  varies from dark/light blue to purply.   BCG Features: - 8620 m16 Carrier - c158 bolt, MPI/HPT Tested, Shot Peened, Nitrided - staked gas key, grade 8+ fasteners, enhanced extractor spring with oring - Quality and guaranteed performance - Made in USA by a quality manufacturer - Lifetime warranty on functionality, (normal wear and tear excluded)
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2 months ago , by Dealer
Our premium quality BCG in a new crazy rainbow galaxy cosmic psychedelic purple haze oil slick multi color eye-catching finish!  If you want a unique Ar15 bolt carrier group that will stand out, this one is for you. - 8620 steel m16 auto carrier - 9310 steel bolt - heat treated - MPI Tested - PVD finish (similar to Titanium Nitride) - Grade 8 fasteners - Properly staked gas key - 5.56/223
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2 months ago
Description The Superlative Arms Patented “bleed Off”, Gas Piston System For The Ar15 Platform Adjusts The Gas Flow By Bleeding The Gas Out Of The Block Instead Of Restricting The Flow Like Conventional Adjustable Blocks. Results: - The pressure used in the block is reduced only to the amount required to drive the bolt carrier. The remaining gas / pressure are bled out of the block allowing the system to run much cleaner and cooler. - Reduction of felt recoil. - Patented adjustment detent is located outside of the block and therefore no contamination.
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2 months ago
Description The Superlative Arms Patented “bleed Off”, Gas Piston System For The Ar-15 Platform Adjusts The Gas Flow By Bleeding The Gas Out Of The Block Instead Of Restricting The Flow Like Conventional Adjustable Blocks. Results: - The pressure used in the block is reduced only to the amount required to drive the bolt carrier. The remaining gas / pressure are bled out of the block allowing the system to run much cleaner and cooler. - Reduction of felt recoil. - Patented adjustment detent is located outside of the block and therefore no contamination.
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2 months ago
Description The Superlative Arms Patented “bleed Off”, Gas Piston System For The AR-15 Platform Adjusts The Gas Flow By Bleeding The Gas Out Of The Block Instead Of Restricting The Flow Like Conventional Adjustable Blocks. Results: - The pressure used in the block is reduced only to the amount required to drive the bolt carrier. The remaining gas / pressure are bled out of the block allowing the system to run much cleaner and cooler. - Reduction of felt recoil. - Patented adjustment detent is located outside of the block and therefore no contamination.
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2 months ago , by Dealer
Flash Sale Special – Nitride MPI 5.56/.223 Bolt Carrier Group (BCG) Product Specs: .233/5.56 NATO Salt bath nitride finish M16 cut 9310 steel carrier Carpenter 158 steel bolt 4140 steel extractor MIL-SPEC O-ring MIL-SPEC gas rings 4140 steel cam pin 8740 steel firing pin with hard chrome finish Magnetic particle inspected Proudly made in the U.S.A. We have released 250 more BCG's for this promotion
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2 months ago , by Dealer
Want to see ALL of our Gun.Deals Exclusive Prices? CLICK HERE TO CHECK OUT ALL THESE DEALS
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2 months ago
Not all Nickel Boron is created equal and FailZero is the undisputed pioneer of Nickel Boron technology. When failure is not an option, you can depend on FailZero. The .224 Valkyrie Bolt Carrier Group is fully assembled and drop-in ready for most MIL-SPEC upper receivers. All critical parts are coated with EXO Nickel Boron technology providing permanent dry lubricity, extreme durability and increased wear and corrosion resistance. This patented Nickel Boron coating will reduce friction and improve the overall performance of your rifle. Features: - M16 cut carrier
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2 months ago
Description The NBS .223/5.56 DLC Bolt Carrier Group was designed with strength in mind. Starting with a 9310 Steel Bolt, which is aircraft-grade material, this bolt has a high core strength rating, a high fatigue strength, and a high hardenability rating. 9310 steel, when treated properly, is about 7% better than Carpenter 158 steel, so you know that you will have a dependable BCG, when you drop this into your rifle. This NBS BCG (Bolt Carrier Group) has been DLC Coated, so that it can provide a long-lasting experience, and provide a significant upgrade to your AR-15. 
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2 months ago
The Cryptic Coatings 5.56 NATO AR-15 Bolt Carrier Group is a low-mass, steel BCG designed to reduce felt recoil and make follow-up shots easier. These high-quality semi-auto/full auto 5.56 NATO BCGs work with AR-15, M16, and M4 platforms. They feature a carrier machined from MIL-SPEC 8620 tool steel, a chrome-lined interior, and a shrouded firing pin. The heat-treated gas key is sealed and secured with Grade 8 fasteners and staked to MIL-SPEC for proper gas system function. The MIL-SPEC bolt is machined from Carpenter 158 steel and shot-peened for strength.
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2 months ago , by Dealer
Titanium Nitride / Gold M-16 Ar15 bolt carrier group by Microbest. Titanium Nitride (Gold) - C158 Bolt - 8620 Carrier - Sprinco ejector spring - Sprinco extractor spring - High-pressure air tested
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