AR-15 Bolt Carrier Groups
AR-15 Bolt Carrier Groups | AR 15 BCG's
AR-15 bolt carrier groups (BCG) are crucial components of the AR-15 rifle, responsible for the cycling of the action and firing of the rifle. Our selection of BCG's includes a variety of styles, including full-auto and semi-auto, made with durable, high-quality materials such as steel and titanium. Many of our BCG's come with additional features such as enhanced gas key, NP3 coating, and chrome lining, which increases the BCG's durability, reliability, and resistance to corrosion. Whether you're a recreational or professional shooter, our BCG's offer improved performance and longevity. Browse our selection of top-quality BCG's from leading manufacturers and find the perfect fit for your rifle. Upgrade your AR-15 today with one of our high-performing BCG's and ensure smooth and reliable operation of your rifle.
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.223/5.56 Bolt Carrier Group - Black Nitride
Black Rifle Depot
MSRP: $139.95$79.95.223/5.56 Bolt Carrier Group - Black Nitride The .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...MSRP: $139.95$79.95 -
Microbest C158 HPT/MPI 5.56 Bolt Carrier Group - Chrome
Microbest
MSRP: $154.95$139.95Microbest C158 HPT/MPI 5.56 Bolt Carrier Group - Chrome The Microbest Bolt Carrier Group is a great choice for any build. This drop-in AR-15 BCG features a corrosion resistant hard chrome finish, MIL-SPEC dimensions, and a magnetic particle inspected...MSRP: $154.95$139.95 -
Bootleg AR 15 Four Position Adjustable Bolt Carrier Group
Bootleg Inc.
MSRP: $209.95$199.95Bootleg AR 15 Four Position Adjustable Bolt Carrier Group The Bootleg AR-15 Four Position Adjustable Bolt Carrier Group offers superior performance, exceptional durability, and increased flexibility for the modern shooter. Machined from high-strength S7...MSRP: $209.95$199.95 -
Nickel Boron M16 Bolt Carrier Group 5.56/.223/300 BLK
Black Rifle Depot
MSRP: $149.95$139.95Nickel Boron M16 Bolt Carrier Group 5.56/.223/300 BLK (BCG) The Nickel Boron M16 Bolt Carrier Group 5.56/.223/300 BLK (BCG) from Black Rifle Depot is a high-quality, precision-machined product with exceptional performance and easy...MSRP: $149.95$139.95 -
Bear Creek Arsenal M16 Profile 5.56 Black Nitride Bolt Carrier Group
Bear Creek Arsenal
MSRP: $85.95$69.95Bear Creek Arsenal M16 Profile 5.56 Black Nitride Bolt Carrier Group 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...MSRP: $85.95$69.95 -
M16 Bolt Carrier Group - Polished Nickel Boron
Dirty Bird Industries
MSRP: $159.95$143.95M16 Bolt Carrier Group - Polished Nickel Boron These M16 BCG's, which are trusted by seasoned shooters and depended on by experienced builders are manufactured with the highest quality materials. Each M16 Bolt Carrier is designed to perform for tens of...MSRP: $159.95$143.95 -
AO Precision C158 SP/HPT/MPI 5.56 Black Nitride Bolt Carrier Group
AO Precision
MSRP: $169.95$119.95AO Precision C158 SP/HPT/MPI 5.56 Black Nitride Bolt Carrier Group 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...MSRP: $169.95$119.95 -
Toolcraft Nickel Boron .223/5.56/300BLK M16 Profile Bolt Carrier Group
Toolcraft Inc.
MSRP: $159.95$134.95Toolcraft Nickel Boron .223/5.56/300BLK M16 Profile Bolt Carrier Group Features 5.56/.223/.300 Black Out Full Auto Capable Carpenter 158 MPI and HPT Tested Bolt Case Hardened 8620 Carrier 4130 Gas Key Grade 8 Hardware With Proper Staking Gas Key Sealed...MSRP: $159.95$134.95 -
AERO Precision Black Nitride Bolt Carrier Group
Aero Precision
MSRP: $170.00$148.95AERO Precision Black Nitride Bolt Carrier Group | BCG A high quality BCG that is properly staked and no obtuse machine markes. This will make a great addition to your build. Features M16-cut carrier Machined from 8620 steel Carrier has forward...MSRP: $170.00$148.95 -
Microbest 5.56 NATO AR 15 Bolt Carrier Group - Black Nitride
Microbest
MSRP: $134.95$124.95Microbest 5.56 NATO AR 15 Bolt Carrier Group - Black Nitride The Microbest 5.56 NATO AR 15 Bolt Carrier is known for being the benchmark for quality and reliability throughout the industry. Microbest not only manufactures their own bolt carriers, but...MSRP: $134.95$124.95 -
Toolcraft M16 Profile Bolt Carrier Group - TiN
Toolcraft Inc.
MSRP: $149.95$129.95Toolcraft M16 Profile Titanium Nitride Bolt Carrier Group – BCG-TiN Toolcraft, Inc. 5.56x45 NATO/.223 Rem M16 Profile Bolt Carrier Group is coated in Titanium Nitride to help reduce friction and overall wear on the bolt...MSRP: $149.95$129.95 -
AERO Precision AR 15 5.56 PRO Bolt Carrier Group - Black Nitride
Aero Precision
MSRP: $195.00$163.95AERO Precision AR 15 5.56 PRO Bolt Carrier Group - Black Nitride The AERO Precision AR 15 5.56 PRO Bolt Carrier Group in Black Nitride is a high-performance component designed to excel in the most demanding conditions. Built with meticulous attention to...MSRP: $195.00$163.95 -
Lightweight .223/5.56 Bolt Carrier Group - Black Nitride
Black Rifle Depot
MSRP: $129.99$108.95Lightweight .223/5.56 Bolt Carrier Group - Black Nitride Precision Engineering for Reduced Recoil and Improved Accuracy Elevate your AR-15’s performance with the Lightweight .223/5.56 Bolt Carrier Group. Precision-machined to MIL-SPEC standards,...MSRP: $129.99$108.95 -
AR 15/M16 Bolt Carrier Group 6.8 SPC .224 Valkyrie Black Nitride
Black Rifle Depot
MSRP: $149.95$139.95AR 15/M16 Bolt Carrier Group 6.8 SPC .224 Valkyrie Black Nitride These Black Rifle Depot AR 15 bolt carrier group is the perfect BCG for your next AR 15 build. Properly built, no corners cut and 100 percent made in the USA. With a lifetime...MSRP: $149.95$139.95 -
BRD .223/5.56 Bolt Carrier Group - TiN
Black Rifle Depot
MSRP: $129.95$119.95BRD .223/5.56 Bolt Carrier Group - TiN The M16 Bolt Carrier Group is the perfect BCG for your next build and is compatible with any AR15 build. The titanium nitride coating provides a very slick surface that makes for easier cleaning and increases...MSRP: $129.95$119.95 -
Lantac Mil-Spec 5.56 Bolt Carrier Group - Black Nitride
Lantac USA
MSRP: $189.99$170.99Lantac Mil-Spec 5.56 Bolt Carrier Group - Black Nitride High-Quality Mil-Spec Performance at an Affordable Price The Lantac Mil-Spec 5.56 Bolt Carrier Group offers superior quality, affordability, and enhanced parts to elevate your AR-15 build. Featuring...MSRP: $189.99$170.99 -
AR-15 9310 Bolt Assembly - Black Nitride
Black Rifle Depot
MSRP: $69.95$52.95AR-15 9310 Bolt Assembly - Black Nitride Made from 9310 Steel which has a high core hardness and high fatigue strength unlike standard Hot/cold rolled 9310 steels. This is a Mil-Spec bolt assembly with enhanced features for those looking to...MSRP: $69.95$52.95 -
On Sale
Toolcraft .223/5.56/300 BLK M16 Profile Bolt Carrier Group - Nickel Boron
Toolcraft Inc.
MSRP: $154.95Now: $99.95Was: $129.95Toolcraft .223/5.56/300 BLK M16 Profile Bolt Carrier Group - Nickel Boron The Toolcraft 5.56×45 NATO/.223 Rem (or .300 Blackout) Bolt Carrier Group comes in the Nickel Boron finish to reduce overall wear and friction, and for...MSRP: $154.95Now: $99.95Was: $129.95 -
Foxtrot Mike Products Premium 9mm AR-15 Bolt Carrier Assembly
Foxtrot Mike
MSRP: $119.00$109.00Foxtrot Mike Products Premium 9mm AR-15 Bolt Carrier Assembly Feature rich, high-quality, and affordable, Foxtrot Mike Products offer cutting edge solutions utilizing the highest quality materials and manufacturing processes available.This Premium 9mm...MSRP: $119.00$109.00 -
KAK Industry K-SPEC 9310 AR-15 5.56/.223/300BLK Bolt Carrier Group - NP3
KAK Industry
MSRP: $269.95$242.00KAK Industry K-SPEC 9310 AR-15 5.56/.223/300BLK Bolt Carrier Group - NP3 The K-SPEC BCG combines multiple key features focused on increasing the reliability of your AR15 style firearm no matter if you are running suppressed or unsuppressed, and...MSRP: $269.95$242.00 -
.223/5.56 Bolt Carrier Group - Blue PVD
Black Rifle Depot
MSRP: $139.95$117.95.223/5.56 Bolt Carrier Group - Blue PVD The .223/5.56 Bolt Carrier Group - Blue PVD is an ideal choice for your next AR15 build, offering compatibility and top-tier performance. Its PVD coating by Ionbond provides a hard surface, making cleaning easier...MSRP: $139.95$117.95 -
KAK Industry K-SPEC C158 AR-15 5.56/.223/300BLK Bolt Carrier Group - Chrome Lined Phosphate
KAK Industry
MSRP: $219.95$199.95KAK Industry K-SPEC C158 AR-15 5.56/.223/300BLK Bolt Carrier Group - Chrome Lined Phosphate The K-SPEC BCG combines multiple key features focused on increasing the reliability of your AR15 style firearm no matter if you are running suppressed or...MSRP: $219.95$199.95 -
.45 ACP Enhanced Bolt Carrier Group - Black Nitride
Black Rifle Depot
MSRP: $165.00$135.00.45 ACP Enhanced Bolt Carrier Group - Black Nitride The BRD Enhanced 45 Bolt assembly is designed for AR-15 style rifles chambered for .45 ACP with a direct blowback system. This bolt is weighted with Tungsten weights adding up to 16 ounces total in...MSRP: $165.00$135.00 -
AR 15/M16 Bolt Carrier Group 6.5 Grendel Black Nitride
Black Rifle Depot
MSRP: $149.95$139.95AR 15/M16 Bolt Carrier Group 6.5 Grendel Black Nitride This AR 15 bolt carrier group is the perfect BCG for your next AR 15 build. Properly built, no corners cut and 100 percent made in the USA. With a limited lifetime warranty, you can't go...MSRP: $149.95$139.95 -
AR-15 .223/5.56 Bolt Carrier Group - DLC
Black Rifle Depot
MSRP: $139.95$129.95AR-15 .223/5.56 Bolt Carrier Group - DLC The .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...MSRP: $139.95$129.95 -
AR-15/M16 Gas Key - Phosphate/Chrome-Lined
Black Rifle Depot
MSRP: $11.99$10.95AR-15/M16 Gas Key - Phosphate/Chrome-Lined Mil-Spec Gas Key for Reliable Cycling and Durability The AR-15/M16 Gas Key is a mil-spec replacement part designed to ensure reliable operation of your AR-15 or M16. Manufactured with precision and finished with...MSRP: $11.99$10.95 -
Centurion Arms C4 5.56 M16 Bolt Carrier Group
Centurion Arms
MSRP: $185.00$175.95Centurion Arms Bolt Carrier Group Precision Engineering for Reliable AR Performance The Centurion Arms C4 Bolt Carrier Group delivers the reliability and durability you need for your AR platform. Built with MPI-tested bolts and a full auto carrier, this...MSRP: $185.00$175.95 -
KAK Industry K-SPEC AR-15 5.56/.223/300BLK Bolt Carrier Group - Chrome Lined Phosphate
KAK Industry
$199.95KAK Industry K-SPEC AR-15 5.56/.223/300BLK Bolt Carrier Group - Chrome Lined Phosphate The K-SPEC BCG combines multiple key features focused on increasing the reliability of your AR15 style firearm no matter if you are running suppressed or...$199.95 -
9mm Bolt Carrier Group - Black Nitride
Black Rifle Depot
MSRP: $119.95$109.959mm Bolt Carrier Group - Black Nitride Building a 9mm rifle? This 9mm Bolt Carrier Group (BCG) ensures smooth cycling and reliable performance. Machined from 8620 steel and finished with a durable QPQ Black Nitride coating, it offers longevity and...MSRP: $119.95$109.95 -
Dirty Bird AR-15 5.56/.223/300BLK Bolt Carrier Group Phosphate/Chrome-Lined
Dirty Bird Industries
MSRP: $149.95$125.95Dirty Bird AR-15 5.56/.223/300BLK Bolt Carrier Group Phosphate/Chrome-Lined The Dirty Bird AR-15 Bolt Carrier Group comes fully assembled and ready to be dropped in. The carrier body is machined from 8620 steel, heat treated, & MP inspected...MSRP: $149.95$125.95 -
Faxon Firearms 5.56 LIGHTWEIGHT 9310 Bolt Carrier Group Complete - Nitride
Faxon Firearms
MSRP: $249.00$229.95Faxon Firearms 5.56 LIGHTWEIGHT 9310 Bolt Carrier Group Complete - Nitride When looking at lightweight bolt carrier groups, we were unsatisfied with what the market had to offer. Seeing a capability gap, we set out to create a bolt carrier group that...MSRP: $249.00$229.95 -
ODIN Works Enhanced 9mm Stainless Steel Bolt Carrier Group
Odin Works
MSRP: $169.00$160.95ODIN Works Enhanced 9mm Stainless Steel Bolt Carrier Group Introducing our new ODIN Works Enhanced Series, 9mm bolt carrier group. Innovative and unlike anything in the industry, this feature packed bolt carrier group is the new standard. Features like a...MSRP: $169.00$160.95 -
Rise Armament AR 15/M 16 Nickel Boron Bolt Carrier Group
Rise Armament
MSRP: $189.95$179.99Rise Armament AR 15/M 16 Nickel Boron Bolt Carrier Group The Rise Armament AR 15/M 16 Nickel Boron Bolt Carrier Group is the perfect choice for shooters who demand the best performance and reliability. The high-quality construction and attention to...MSRP: $189.95$179.99 -
A*B Arms Pro 5.56 Bolt Assembly - Nickel Boron
A*B Arms
$99.99A*B Arms Pro 5.56 Bolt Assembly - Nickel Boron American Built Arms Nickel Boron 5.56mm Bolt Assembly. Made in the USA to Mil-Spec dimensions, this C-158 steel bolt features a Nickel Boron coating. The E4140 steel extractor and has a Manganese Phosphate...$99.99 -
Dirty Bird Industries Enhanced Bolt Carrier Group .223/5.56
Dirty Bird Industries
MSRP: $149.95 - $181.95$134.95 - $159.95Dirty Bird Industries Enhanced Bolt Carrier Group .223/5.56 The Dirty Bird Enhanced Bolt Carrier Group for .223/5.56 features a unique carrier design with practical improvements in two key areas: Strategically relocated load bearing...MSRP: $149.95 - $181.95$134.95 - $159.95 -
Geissele .223/5.56 Reliability Enhanced Bolt Carrier Group
Geissele Automatics
$385.00Geissele .223/5.56 Reliability Enhanced Bolt Carrier Group The Reliability Enhanced Bolt Carrier Group (REBCG) is a 5.56mm full-mass, full-auto rated M16/M4 bolt carrier group manufactured in Geissele’s state-of-the-art manufacturing facility in...$385.00 -
Rosco Manufacturing Bloodline 5.56/300BLK M16 Bolt Carrier Group - Nitride
Rosco Manufacturing
MSRP: $140.00$126.95Rosco Manufacturing Bloodline 5.56/300BLK M16 Bolt Carrier Group - Nitride These 5.56 / 300 BLK Bolt Carrier Groups are Melonited, Full-Auto rated, are properly staked, and the bolts are Matched to the barrel. Check your local laws and regulations on...MSRP: $140.00$126.95 -
A*B Arms AR-15/M16 Bolt Carrier Group Essential Parts Kit
A*B Arms
$59.99A*B Arms AR-15/M16 Bolt Carrier Group Essential Parts Kit A*B Arms is built stronger because sometimes, lives are on the line. Their products stand up to the rigors of combat, police and private security operations, where failure is not an option.The AR...$59.99 -
A*B Arms AR-15/M16 Firing Pin - Chrome
A*B Arms
$10.99A*B Arms AR-15/M16 Firing Pin - Chrome AR-15 Mil-Spec Firing Pin. Made from AISI 8740 steel and chrome plated$10.99 -
Dirty Bird Industries Sand-Cut Bolt Carrier Group .223/5.56
Dirty Bird Industries
MSRP: $154.95 - $174.95$139.95 - $159.95Dirty Bird Industries Sand-Cut Bolt Carrier Group .223/5.56 Reliability in Any Environment Engineered for ultimate performance in the harshest conditions, the Dirty Bird Industries Sand-Cut Bolt Carrier Group (BCG) for .223/5.56 delivers unmatched...MSRP: $154.95 - $174.95$139.95 - $159.95