Bolt Carrier Groups

The best just got better! From the inventors of the very first fully modular, patented, ambidextrous safety selector for the AR-15 platform, Battle Arms Development is raising the bar on reliability and compatibility of hard-use MSR components.Features...

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 permanent dry lubricity, extreme durability and...

Manufactured by their finest domestic Mil-Spec contractors these are among the best 5.56 AR rifle bolts on the market and the same bolts they use as the basis of their renowned custom rifles! Their bolt is precision machined from Carpenter 158" shot...

The 2A Armament Lightweight Bolt Carrier (LBC) is a lightweight carrier solution for those looking to reduce both felt recoil, and over all weight of the AR-15 pattern rifle. The LBC combines a very high quality forward body and an advanced bearing...

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 ensure years of service you can count on.Features...

Complete Mk3 bolt carrier group.Features :8620 Steel CarrierPhosphate Finish9310 Steel Bolt

The Enhanced Bolt Carrier Group for AR15/M16 platform weapons was designed to minimize carrier tilt and reduce friction inside the upper receiver by relocating key bearing surfaces. All materials, tolerances, and coatings meet or exceed milspec...

This AR10 Black Bolt Carrier Group (BCG) comes fully assembled and ready to drop into most Spec AR10 upper receivers. All critical parts are coated with EXO Nickel Boron Technology that provides permanent dry lubricity, extreme durability and increases...

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 dry lubricity" extreme durability and increases both...

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 ensure years of service you can count on.Features...

High quality components and precise manufacturing make CMC parts ideal for maintaining and upgrading firearms. The durability, reliability and excellent build quality of these parts will ensure years of service you can count on.Features :Precise...

The CMC Triggers Suppressor Optimized Enhanced Bolt Carrier Group for the New Hornady 6mm ARC is designed for shooters who demand superior performance weapon components in the heart of their firearm. CMC Triggers manufactures the highest quality firearms...