Bolt Carrier Groups

Mystic Black Bolt – 9mm Cryptic 9mm bolts are designed for use with GLOCK and COLT style magazines as well as drop in mag well adapters. They feature an extra heavy duty, 4140 heat treated, external extractor specifically designed for a 9mm case...

Seeing MIL-SPEC as just the starting point, they set out to ensure the best options are available for their demanding customers. Improvements include using 9310 tool steel for the bolt, nitriding the assembly to increase surface hardness, decrease...

JP VMOS™ Bolt Carrier Large-Frame (.308) Stainless Steel QPQ Black Finish Heavy Version Cycling problems? The VMOS™ brings the discipline your rifle needs. For difficult setups like suppressed rifles and exotic caliber chamberings, some...

Rise Armament, Bolt Carrier Group, .223/5.56, Nickel Boron Finish Precise Manufacturing Long Term Reliability Durable Construction High quality components and precise manufacturing make Rise Armament parts ideal for maintaining and upgrading...

The Aero Precision EPC/AR9 Bolt is the core of your EPC build. Machined from 8620 steel and featuring a nitride finish, fracture resistant grade 23 titanium pin, and 4140 steel extractor, the EPC bolt assembly is precision machined from the ground up...

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...

Everything you need to convert your existing upper to a dedicated .22LR. Just purchase a magazine and you are ready to go. For best performance use a round style hammer as notched hammers can cause function issues and 36 grain plated nose bullets have...

CRYPTIC - .308 WIN / 7.62x51mm - Dragon's Breath Steel BCG (CC-0201) Coated bolt carrier group (full auto version) for AR10 (.308 WIN / 7.62x51mm) machined from Mil-Spec 8620 aircraft quality steel with shrouded firing pin and Mil-Spec chrome lined...

Dragon's Breath – 9mm Cryptic 9mm bolts are designed for use with GLOCK and COLT style magazines as well as drop in mag well adapters. They feature an extra heavy duty, 4140 heat treated, external extractor specifically designed for a 9mm case...

Mystic Black Bolt – 9mm Cryptic 9mm bolts are designed for use with GLOCK and COLT style magazines as well as drop in mag well adapters. They feature an extra heavy duty, 4140 heat treated, external extractor specifically designed for a 9mm case...

This 6MM ARC Bolt Carrier Group (BCG) comes fully assembled and ready to drop into most Mil-Spec upper receivers chambered in 6MM ARC. All critical parts are coated with EXO Nickel Boron Technology that provides permanent dry lubricity, extreme...

LanTac USA LLC, Enhanced Side Charger Bolt Carrier Group, Fits AR15, M16 Style, Nickel Boron Finish, Silver