Bolts & Bolt Carrier Groups

FailZero

FailZero M16 Carrier, Semi-Auto Hammer FZ-M164-01-SAH

Sons of Liberty Gun Works

Sons of Liberty Gun Works Scalper SOLGWBCG556-SCALPER

KAK Industry

KAK Industry K-SPEC 303-0505-002

KAK Industry

KAK Industry K-SPEC 425-0512-003

KAK Industry

KAK Industry K-SPEC 303-0502-011

KAK Industry

KAK Industry Enhanced MO-KAK9MMENHBCG

Doublestar Corp.

Doublestar Corp. DBST BOLT CARRIER REBUILD KIT 841348104063 AR789

Faxon Firearms

Faxon Firearms Lightweight FF556BCGCNITRIDE-LW

KAK Industry

KAK Industry K-SPEC 425-0507-003

KAK Industry

KAK Industry AR-15 Carrier Completion Kit 304-1010-003

KAK Industry

KAK Industry Bolt Carrier Group 425-0512-001

KAK Industry

KAK Industry K-SPEC 204-0412-001

KAK Industry

KAK Industry AR-15 Carrier Completion Kit 304-1002-001

Spike's Tactical

Spike's Tactical SPIKE'S 9MM BOLT BLK 815648025243 ST9BG01

KAK Industry

KAK Industry K-SPEC 425-0505-003

Daniel Defense

Daniel Defense 556 04-013-19032

LBE Unlimited

LBE Unlimited LBE AR BOLT KIT 784682014677 ARBLTKT

Angstadt Arms

Angstadt Arms ANGSTADT AR15 BCG 556NATO BLK 853427007776 AA56BCGNIT

Angstadt Arms

Angstadt Arms AR-15 AA09BCGNIT

Faxon Firearms

Faxon Firearms FAXON GEN 2 9MM PCC FULL-MASS BCG 816341022805 FF9MMBCGCNITRIDE