Bolt Carrier Groups

This 9mm Bolt Carrier Group (BCG) comes fully assembled and ready to drop into most 9mm AR platform rifles and pistols. The FailZero Black Nitride 9mm BCG is compatible with both lowers designated...

This high quality bolt carrier group is a valuable addition to your AR15 build. Features: M16-cut carrier Machined from 8620 Tool Steel (Carrier) and 9310 Steel (Bolt) Carrier has forward assist...

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

The LUTH-AR complete BCG includes the Bolt Carrier, Carrier Key, Cam Pin and Firing Pin Retaining Pin. (Entire Bolt Carrier Assembly/Extractor Assembly for AR-15) Luth-AR, Bolt Carrier Group, Black...

The LBE M16 Complete Bolt Carrier Group comes assembled and ready to go. Features include: Phosphate 8620 Steel Carrier, Carpenter 158 Bolt (Extractor and Bolt Gas Rings Included), Chrome Lined...

Black Rain Ordnance Left Hand Bolt Carrier Group Nickel Boron Black Rain Ordnance, Inc. is a precision firearms manufacturer specializing in modern sporting rifle designs and high quality accessories...

This Bolt Carrier Group (BCG) comes fully assembled and ready to drop into most mil spec AR10 upper receivers. All critical parts are coated with EXO Nickel Boron technology that provides permanent...

Colt's Manufacturing, Mil-Spec Bolt Carrier Group, 223Rem/556NATO, Black Parkerized Finish Parkerized Mil-Spec

Machined from 4140, Nitride Coating, MIL-SPEC configuration, Staked MIL-SPEC Gas Key, Full Auto Rated. Bootleg, 5.56 Lightweight Bolt Carrier Group, Machined from 4140, Nitride Coating, Mil Spec...

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

The LBE Nickel Boron Complete BCG includes the firing pin, retaining pin, cam pin, extractor and bolt gas rings. Made in the USA. LBE Unlimited, 556 Bolt Carrier Group, Nickel Boron Coated Fits...

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