FailZero

 .224 VALKYRIE BOLT CARRIER GROUP Bolt Gas Key Extractor Bolt Carrier Cam Pin Firing Pin

Failzero M16 Bolt Carrier Group Includes: Firing Pin Bolt Carrier Extractor Cam Pin Carrier Key Bolt & Extractor (5.56 / .223 Compatible)

Failzero Lightweight Bolt Carrier Group Carrier Weighs 6.4 oz/ complete BCG weighs 9.2 oz Compatible with all MilSpec AR Platforms Components are EXO NIB Compatible with 5.56, .223 and .300...

FailZero AR10 Bolt Carrier Group No Hammer Includes: Firing Pin Cam Pin Carrier Pin Extractor Bolt Carrier Bolt & Extractor (.308)   This Bolt Carrier Group (BCG) comes fully...

7.62X39 No Hammer Bolt Carrier Group - NIB Includes: Made in the USA Cam Pin Carrier Key M16 Cut Bolt Carrier Bolt & Extractor (7.62x39)

Failzero 6.8 SPC Bolt Carrier Group Kit Includes: .224 Compatible M16 Cut Bolt Carrier Cam Pin Carrier Key Firing Pin Bolt & Extractor

Failzero 458 SOCOM BCG No Hammer NIB Kit Includes: Firing Pin Bolt Carrier Cam Pin Bolt Gas Key Extractor

FAILZERO 6.5 GRENDEL BOLT CARRIER GROUP NIB Parts Included: Firing Pin Carrier Key Cam Pin M16 Cut Bolt Carrier Bolt & Extractor (.224 Valkyrie and 6.8 SPC Compatible)

FAILZERO 450 Bushmaster Bolt Carrier Group Includes: Firing Pin Bolt Bolt Carrier Cam Pin Extractor