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 -
Mil-Spec M16 Bolt Carrier Group (BCG)
AO Precision
MSRP: $159.95$99.95AO Precision Mil-Spec M16 Bolt Carrier Group (BCG) Reliable Mil-Spec Bolt Carrier Group for Superior Performance The AO Precision Mil-Spec M16 Bolt Carrier Group (BCG) is crafted to strict military specifications, delivering a durable and...MSRP: $159.95$99.95 -
Toolcraft .223/5.56/300 BLK M16 Profile Bolt Carrier Group - Black Nitride
Toolcraft Inc.
MSRP: $149.95$99.95Toolcraft Black Nitride .223/5.56/300BLK M16 Profile Bolt Carrier Group Toolcraft is known for their unsurpassed quality and durability in their BCG's. Mil-Spec is just the beginning, they have spent attention to detail in every aspect of the...MSRP: $149.95$99.95 -
On Sale
Bear Creek Arsenal M16 Profile 5.56 Black Nitride Bolt Carrier Group
Bear Creek Arsenal
MSRP: $85.95Now: $54.95Was: $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: $85.95Now: $54.95Was: $69.95 -
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 -
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 -
Microbest Mil-Spec C158 HPT/MPI 5.56 Bolt Carrier Group - Phosphate/Chrome-Lined
Microbest
MSRP: $149.95$134.95Microbest Mil-Spec C158 HPT/MPI 5.56 Bolt Carrier Group - Phosphate/Chrome-Lined 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...MSRP: $149.95$134.95 -
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 -
Toolcraft .223/5.56/300 BLK M16 Profile Bolt Carrier Group - Nickel Boron
Toolcraft Inc.
MSRP: $154.95$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: $154.95$129.95 -
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 -
Faxon Chameleon M16 Bolt Carrier Group
Faxon Firearms
MSRP: $199.00$183.95Faxon Chameleon M16 Bolt Carrier Group We just can't help not accepting the status quo. Bolt carrier groups are available aplenty, but few could meet our exacting standards for performance and value. Seeing "MIL-SPEC" as just the starting point, we set...MSRP: $199.00$183.95 -
Toolcraft .223/5.56/300 BLK M16 Profile Bolt Carrier Group Ion Bond DLC - Grey
Toolcraft Inc.
MSRP: $209.95$189.95Toolcraft .223/5.56/300 BLK M16 Profile Bolt Carrier Group Ion Bond DLC - Grey The Palmetto State Armory DLC coated Bolt Carrier Group was designed with the serious AR enthusiast in mind. The bolt is made of Mil-spec Carpenter 158 steel, shot peened and...MSRP: $209.95$189.95 -
Wilson Combat .223/5.56/300 BLK M16 Profile Bolt Carrier Group Nickel Boron
Wilson Combat
$199.95Wilson Combat .223/5.56/300 BLK M16 Profile Bolt Carrier Group Nickel Boron 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...$199.95 -
Faxon Firearms 9mm Bolt Carrier Group Complete, Glock & Colt Compatible Nitride
Faxon Firearms
MSRP: $165.00$151.95Faxon Firearms 9mm Bolt Carrier Group Complete, Glock & Colt Compatible Nitride Purpose-built for 9mm AR-15 pistol caliber carbines, our Generation 2 PCC blow-back carriers keep the features of our well-loved first BCG with modern...MSRP: $165.00$151.95 -
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 -
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 -
Faxon Firearms 6.5 Grendel 9310 Bolt Carrier Group Complete - Nitride
Faxon Firearms
MSRP: $165.00$151.95Faxon Firearms 6.5 Grendel 9310 Bolt Carrier Group Complete - Nitride Bolt: Type II (.136") bolt 9310 Tool Steel Construction (Stronger than C158) Full MIL-SPEC Heat Treatment Shot Peened to MIL-SPEC Magnetic Particle Inspection (MPI) Back of Lugs...MSRP: $165.00$151.95 -
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 -
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 -
On Sale
Toolcraft .223/5.56/300 BLK C158 M16 Profile Bolt Carrier Group - Black Nitride
Toolcraft Inc.
MSRP: $129.99Now: $89.95Was: $109.95Toolcraft .223/5.56/300 BLK C158 M16 Profile Bolt Carrier Group - Black Nitride Toolcraft Inc. is an OEM manufacturer of bolt carrier groups (BCGs) for many AR15 makers. These companies know they can trust Toolcraft quality and are proud to have their...MSRP: $129.99Now: $89.95Was: $109.95 -
7.62x39 M16 Profile Bolt Carrier Group
Black Rifle Depot
MSRP: $139.99$108.957.62x39 M16 Profile Bolt Carrier Group Engineered for Superior Strength and Reliability The 7.62x39 Black Nitride Bolt Carrier Group (BCG) is meticulously designed for durability and consistent performance. Starting with a robust 9310 Steel Bolt, this...MSRP: $139.99$108.95 -
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 -
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 -
Forward Controls Design NP3 M16 Bolt Carrier Group
Forward Controls Design
$275.00Forward Controls Design NP3 M16 Bolt Carrier Group High-Quality Construction with Enhanced Durability and Performance Forward Controls Design takes the M16 bolt carrier group to new heights with a focus on high-quality materials, thoughtful enhancements,...$275.00 -
Geissele Automatics Reliability Enhancement Kit - H3
Geissele Automatics
$455.00Geissele Automatics Reliability Enhancement Kit - H3 The Geissele Automatics Reliability Enhancement kit comes with the enhanced 5.56 BCG, Super 42 braided buffer spring, and H3 buffer weight. The Enhanced Bolt Carrier Group is a full mass M16 profile...$455.00 -
Lantac Enhanced AR-15/M16 Bolt Carrier Group
Lantac USA
MSRP: $299.99$269.99Lantac Enhanced AR-15/M16 Bolt Carrier Group LANTAC USA manufactures the highest quality accessories for AR-15/M16 pattern rifles. Precision made in the U.S.A., rifles, muzzle brakes and more.The Enhanced Bolt Carrier Group is precision machined from...MSRP: $299.99$269.99 -
Lantac Mil-Spec 5.56 Bolt Carrier Group - TIN
Lantac USA
MSRP: $219.99$199.99Lantac Mil-Spec 5.56 Bolt Carrier Group - TIN M-SPEC® is a range of AR15 accessories and components that follow the military specification in dimensions, tolerances, and materials with the addition of a few upgrades and enhancements to raise the...MSRP: $219.99$199.99 -
Rise Armament AR 15/M 16 Black Nitride Bolt Carrier Group
Rise Armament
MSRP: $179.99$169.99Rise Armament AR 15/M 16 Black Nitride Bolt Carrier Group RISE Armament advanced bolt-carrier group (BCG) manufactured with precision and individually inspected to ensure high-level performance. The easy-to-clean black nitride finish offers...MSRP: $179.99$169.99 -
Rubber City Armory Black Nitride+ M16 Bolt Carrier Group w/ Adjustable Gas Key
Rubber City Armory
$214.99Rubber City Armory Black Nitride+ M16 Bolt Carrier Group w/ Adjustable Gas Key Features Strong, easy-to-clean, enhanced heat treated Blackntride+ finish inside and out Revolutionary treatment eliminating the need for excessive oil or grease on tactical...$214.99 -
Wilson Combat 6.5 Grendel M16 Profile Bolt Carrier Group Polished NiB
Wilson Combat
MSRP: $232.95$225.95Wilson Combat 6.5 Grendel M16 Profile Bolt Carrier Group Polished NiB Smooth, Durable, and Precision-Machined for Superior Performance The Wilson Combat 6.5 Grendel M16 Profile Bolt Carrier Group (BCG) with a polished Nickel Boron finish offers unmatched...MSRP: $232.95$225.95 -
Wilson Combat .223/5.56/300 BLK M16 Profile Bolt Carrier Group Polished NiB
Wilson Combat
$209.95Wilson Combat .223/5.56/300 BLK M16 Profile Bolt Carrier Group Polished NiB 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...$209.95 -
Daniel Defense M16 Cut Complete AR-15 Bolt Carrier Group
Daniel Defense
MSRP: $237.00$228.00Daniel Defense M16 Cut Complete AR-15 Bolt Carrier Group The Daniel Defense M16 Cut Complete Bolt Carrier Group is a MIL-SPEC, full auto compatible, M16 profile bolt carrier group assembly. The 8620 steel carrier and Carpenter 158 steel bolt assembly...MSRP: $237.00$228.00