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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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 -
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 -
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 -
Out of stock
AERO Precision 5.56 Bolt Carrier Group No Logo - Black Nitride
Aero Precision
MSRP: $170.00$144.95AERO Precision 5.56 Bolt Carrier Group No Logo - Black Nitride The Aero Precision non-logo'd BCG in Black NItride is an excellent BCG. It is a great way to include a BCG in your upper build if you are a custom builder and trying to maintain...MSRP: $170.00$144.95 -
Out of stock
AERO Precision 5.56 Bolt Carrier Group No Logo - Phosphate
Aero Precision
MSRP: $165.00$139.95AERO Precision 5.56 Bolt Carrier Group No Logo - Phosphate These high quality AR 15 Bolt carrier Groups from AERO Precision are manufactured to mil spec and feature a Phosphate coating and would make a great addition to your next AR 15...MSRP: $165.00$139.95 -
Out of stock
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 -
Out of stock
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 -
Out of stock
Aero Precision 6.5 Grendel Bolt Carrier Group, Complete - Black Nitride
Aero Precision
MSRP: $175.00$159.99Aero Precision 6.5 Grendel Bolt Carrier Group, Complete - Black Nitride The recently released 6.5 Grendel Black Nitride Bolt Carrier Group by Aero Precision is a fantastic BCG. Like Aero Precision's other BCGs, this unit is designed for serious usage in...MSRP: $175.00$159.99 -
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 -
Out of stock
Aero Precision AR-15 5.56/.223 Bolt Carrier Group w/ Carrier Grooves - Black Nitride
Aero Precision
MSRP: $170.00$149.95Aero Precision AR-15 5.56/.223 Bolt Carrier Group w/ Carrier Grooves - Black Nitride Precision-Engineered, High-Quality BCG for Your AR-15 Build. The Aero Precision AR-15 5.56/.223 Bolt Carrier Group (BCG) is the perfect addition to any AR build,...MSRP: $170.00$149.95 -
Centurion Arms C4 5.56 M16 Bolt Carrier Group
Centurion Arms
MSRP: $185.00$175.75Centurion 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$175.75 -
Out of stock
Spike's Tactical 5.56/.223 M16 Cut Bolt Carrier Group - Phosphate
Spike's Tactical
$149.95Spike's Tactical 5.56/.223 M16 Cut Bolt Carrier Group - Phosphate Your bolt carrier group is one of the most critical parts of your build. Don't buy an imitation. This is the same BCG Spike’s uses on their builds. These complete bolt carrier groups...$149.95 -
Out of stock
Aero Precision 5.56 Bolt Carrier Group, Complete - Phosphate
Aero Precision
MSRP: $165.00$141.95Aero Precision 5.56 Bolt Carrier Group, Complete - Phosphate This high quality bolt carrier group is a valuable addition to your AR15 build. Features: M16-cut carrier Machined from 8620 steel Carrier has forward assist serrations Mil-Spec phosphate...MSRP: $165.00$141.95 -
Out of stock
Angstadt Arms AR 15 Bolt Carrier Group
Angstadt Arms
$139.99Angstadt Arms AR 15 Bolt Carrier Group The heart of a reliable AR-15 build is a quality 5.56 bolt carrier group assembly. These are the same high quality BCG's Angstadt makes for law enforcement and military groups around the world. Machined to...$139.99 -
ODIN Works Black Nitride Bolt Carrier Group 223REM/556NATO/300BLK
Odin Works
MSRP: $129.00$127.95ODIN Works Black Nitride Bolt Carrier Group 223REM/556NATO/300BLK As an essential part of any rifle, the ODIN Works .223 Black Nitrided, Type 2 bolt face is Mil-Spec and comes with a Case Hardened 8620 Steel Black Nitride Finish. This advanced low...MSRP: $129.00$127.95 -
Out of stock
Ballistic Advantage AR-15 5.56/.223 Bolt Carrier Group Black Nitride
Ballistic Advantage
$129.99Ballistic Advantage AR-15 5.56/.223 Bolt Carrier Group Black Nitride Premium Performance and Durability for Your AR-15 Rifle The Ballistic Advantage AR-15 5.56/.223 Bolt Carrier Group is built for reliable performance and durability. Coated in Black...$129.99 -
Out of stock
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 -
Out of stock
Spike's Tactical AR 15 Nickel Boron Bolt Carrier Group
Spike's Tactical
MSRP: $225.00$219.95Spike's Tactical AR 15 Nickel Boron Bolt Carrier Group Your Bolt Carrier Group is one of the most critical parts of your build. Don't buy an imitation. This is the Spike's Tactical BCG with Nickel Boron Coating. Features: Nickel Boron Coating...MSRP: $225.00$219.95 -
Out of stock
Aero Precision .224 Valkyrie/6.8 SPC Bolt Carrier Group, Complete - Black Nitride
Aero Precision
MSRP: $159.00$147.95Aero Precision .224 Valkyrie/6.8 SPC Bolt Carrier Group, Complete - Black Nitride The Aero Precision .224 Valkyrie Bolt Carrier Group for AR-15 rifles is made from high quality materials with quality assurance measures like high pressure testing and...MSRP: $159.00$147.95 -
Out of stock
Colt's Manufacturing Mil-Spec Bolt Carrier Group 223Rem/556NATO - Black
Colt Manufacturing
$229.99Colt's Manufacturing Mil-Spec Bolt Carrier Group 223Rem/556NATO - Black This Colt Mil-Spec 5.56 Bolt Carrier Group is made to Mil-Spec for long lasting reliability and durability. Made from high quality steel with a durable matte black Parkerized finish,...$229.99 -
Out of stock
Geissele Automatics Reliability Enhancement Kit - H1
Geissele Automatics
$425.00Geissele Automatics Reliability Enhancement Kit - H1 The Geissele Automatics Reliability Enhancement kit comes with the enhanced 5.56 BCG, Super 42 braided buffer spring, and H1 buffer weight. The Enhanced Bolt Carrier Group is a full mass M16 profile...$425.00 -
Out of stock
Geissele Automatics Reliability Enhancement Kit - H2
Geissele Automatics
$440.00Geissele Automatics Reliability Enhancement Kit - H2 The Geissele Automatics Reliability Enhancement kit comes with the enhanced 5.56 BCG, Super 42 braided buffer spring, and H2 buffer weight. The Enhanced Bolt Carrier Group is a full mass M16 profile...$440.00 -
Out of stock
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 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 -
Out of stock
ODIN Works 6.5 Grendel Type 2 Black Nitride Bolt Carrier Group
Odin Works
MSRP: $149.00$147.95ODIN Works 6.5 Grendel Type 2 Black Nitride Bolt Carrier Group Specifications Type 2 6.5 Grendel bolt face True Mil-Spec Bolt Carrier Group Material: Case Hardened 8620 Steel Finish: Black Nitride. This advanced low friction coating minimizes the need...MSRP: $149.00$147.95 -
Out of stock
Sons of Liberty AR-15 M16 Profile 5.56/300 BLK Bolt Carrier Group - Nickel Teflon Coating (NTC)
Sons of Liberty Gun Works
MSRP: $269.00$255.95Sons of Liberty AR-15 M16 Profile 5.56/300 BLK Bolt Carrier Group - Nickel Teflon Coating (NTC) Sons of Liberty goes to show that in order to make the best products in the industry, you don't have to add bells and whistles. It takes consistently...MSRP: $269.00$255.95 -
Out of stock
Spike's Tactical Lightweight Nickle Boron Bolt Carrier Group
Spike's Tactical
MSRP: $250.00$239.95Spike's Tactical M16 Lightweight Nickle Boron Bolt Carrier Group Your Bolt Carrier Group is one of the most critical parts of your build. Don't buy an imitation. This is the Spike's Tactical Lightweight BCG with Nickel Boron Coating. Features: Nickel...MSRP: $250.00$239.95 -
Out of stock
Wilson Combat .223/5.56/300 BLK M16 Profile Bolt Carrier Group Black Nitride
Wilson Combat
$179.95Wilson Combat .223/5.56/300 BLK M16 Profile Bolt Carrier Group Black Nitride 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...$179.95 -
Out of stock
Wilson Combat .223/5.56/300 BLK M16 Profile Bolt Carrier Group Phosphate/Chrome-Lined
Wilson Combat
$179.95Wilson Combat .223/5.56/300 BLK M16 Profile Bolt Carrier Group Phosphate/Chrome-Lined 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...$179.95 -
Out of stock
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 -
Out of stock
Wilson Combat 6.8 SPC M16 Profile Bolt Carrier Group Nickel Boron
Wilson Combat
MSRP: $232.95$225.95Wilson Combat 6.8 SPC M16 Profile Bolt Carrier Group Nickel Boron Enhanced Durability and Smooth Operation The Wilson Combat 6.8 SPC M16 Profile Bolt Carrier Group (BCG) in Nickel Boron finish is built for top-tier performance and reliability...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 -
Out of stock
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