Bolt Carrier Groups

FailZero, Bolt Carrier Group, 6.8SPC, Nickel Boron Coated, No Hammer Nickel Boron treated Extreme durability Dry lubricity Corrosion resistant This 6.8 SPC Bolt Carrier Group (BCG) comes fully assembled and ready to drop into most Mil-Spec...

M16 Chrome Complete Bolt Carrier Group with Standard Bolt, Hard Chromed after Heat Treatment CNC Machined Hard chromed after heat treatment Sharp edges and rough finishes eliminated This is a Semi-Auto/Full Auto M16 Complete bolt carrier group...

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 AR-15 RIFLES, 22LR AR-15 CONVERSION KITS AND...

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 maintaining and upgrading firearms. The durability,...

Angstadt Arms, AR-15 Bolt Carrier Group, 9MM, Black Finish, Compatible For Use with Both Glock and Colt Style Dedicated 9mm AR-15 Lower Receivers For Use with a Standard AR-15 Hammer QPQ Black Nitride Finish Machined from 8620 Alloy Steel This...

2A Armament, Bolt Carrier Group, Titanium Regulated Bolt Carrier Group, AR Platfrom, Black Finish Grade 5, 6AL-4V Titanium QPQ Nitride Staked Screws Adjustable Gas Regulator The Titanium Regulated Bolt Carrier (RBC) is an ultra-lightweight...

CMMG, Bolt Carrier Group M16, 556NATO, Black 8620 Steel Carrier Phosphate Finish 9310 Steel Bolt Complete Mil Spec M16 bolt carrier group.

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. Rise Armament,...

This replacement bolt for any of LWRC rifles chambered in 6.8mm, including both the Six8 line and the legacy M6 rifles with 6.8 SPC barrels. This bolt fits into any Mil-STD carrier and functions accordingly. With a fully supported bolt face, LWCR's ACBs...

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 for Glock or Colt magazines. All critical parts are...

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 serrations Black Nitride Finish - advanced lower...

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 years of service you can count on. LanTac USA LLC, 308...