Bolt Carrier Groups

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...

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...

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...

Aero Precision's .308 / 7.62 Bolt Carrier Group is the perfect firing mechanism for your big-bore rifle build. This high quality BCG features a Black Nitride finish, is MPI/HPT and now includes a laser engraved Aero Precision 'A' logo Aero Precision,...

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...

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...

Mystic Black Low Mass Steel BCG – .223 / 5.56 / .300 AAC Blackout Bolt carrier group for AR15, M16, or M4 compatible with semi and full auto versions. Carrier is machined from Mil-Spec 8620 tool steel with shrouded firing pin and Mil-Spec chrome...

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

CRYPTIC - 6.5 Grendel - Mystic Black Steel BCG – Type II Coated bolt carrier group (full auto version) for AR15, M16, or M4 machined from Mil-Spec 8620 aircraft quality steel with shrouded firing pin and Mil-Spec chrome lined interior. BCG...

CRYPTIC - 6.5 Grendel - Mystic Black Steel BCG – Type II Coated bolt carrier group (full auto version) for AR15, M16, or M4 machined from Mil-Spec 8620 aircraft quality steel with shrouded firing pin and Mil-Spec chrome lined interior. BCG...

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...

CRYPTIC - .308 WIN / 7.62x51mm - Mystic Gold 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 interior...