Bolt Carrier Groups

The POF Roller Cam Pin reduces friction and drag of the bolt carrier. The roller cam pin rolls as the action moves. The roller cam pin is NP3 coated and the body is Milspec hard chrome plated. This...

Sons of Liberty Gun Works - Bolt Carrier Group - Scalper Logo For 223/556 With Manganese Phosphate Finish

The LBE AR Bolt Kit includes the bolt, firing pin, cam pin and firing pin retaining pin. Made in the USA. LBE Unlimited, AR Bolt Kit, Includes Bolt, Firing Pin, Cam Pin, and Retaining Pin Fits...

This EXO Nickel Boron coated firing pin provides a permanently lubricious surface for extreme durability and increased wear and corrosion resistance.

San Tan Tactical Enhanced BCG Black Nitride 6MM ARC San Tan Tactical believes in America, and the heritage upon which this great nation was built. They only use the highest quality machine's in...

This BCG is designed to operate with either 6.5 Grendel or Hornady's new 6mm ARC. Will not work with CMMG MkW platform. It is designed for standard AR variants. CMMG, AR15 Bolt Carrier Group, 6.5...

M16 Full Auto Style for increased mass and lock time.This BCG is precision machined from 8620 steel with a shot peened bolt manufactured from Carpenter 158 and Magnetically Particle Inspected. LanTac...

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...

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...