Bolt Carrier Groups

High quality components and precise manufacturing make LuthAR parts ideal for maintaining and upgrading firearms. The durability, reliability and excellent build quality of these parts will ensure...

High quality components and precise manufacturing make San Tan Tactical parts ideal for maintaining and upgrading firearms. The durability, reliability and excellent build quality of these parts will...

Sons of Liberty Gun Works Bolt Carrier Group 223 Remington/556NATO - Manganese Phosphate Finish Sons of Liberty goes to show that in order to make the best products in the industry, you don't have to...

Bauer Precision 5.56 Helical, One Piece Gas Ring   This gas ring is designed specifically for use with .223 caliber and 5.56 caliber ARs and is made from durable, high-quality materials. It is used...

Bauer Precision Gas Ring Set (3) Included is 3 Gas Rings for a standard AR15 bolt. 

This Bolt Carrier Group (BCG) comes fully assembled and ready to drop into most mil spec M16, M4 or AR15 upper receivers. All critical parts are coated with EXO Nickel Boron technology that provides...

This 7.62x39 Bolt Carrier Group (BCG) comes fully assembled and ready to drop into most mil-spec upper receivers chambered in 7.62x39. All critical parts are coated with EXO Nickel Boron technology...

High quality components and precise manufacturing make FailZero parts ideal for maintaining and upgrading firearms. The durability, reliability and excellent build quality of these parts will ensure...

This fully assembled and NiB coated (5.56/.223) bolt assembly is compatible with most mil spec AR15, M16, M4 Carriers. EXO Nickel Boron provides permanent dry lubricity; increased wear and corrosion...

This is a Semi-Auto/Full Auto M16 bolt carrier group made with MILSPEC 8620 quality steel on KE Arms' in-house CNC machines. It is heat-treated and Black Nitride coated. Sharp edges and rough...

CMMG, Mk57 Barrel, 5.7X28MM, 5" Barrel, 1:9 Twist, Black Finish, Includes BCG, Fits AR Rifles Precise Manufacturing Long Term Reliability Durable Construction CMMG IS A LEADING MANUFACTURER OF...

CMC Triggers, Enhanced Bolt Carrier Group, Black Precise Manufacturing Long Term Reliability Durable Construction High quality components and precise manufacturing make CMC parts ideal for...