Fail Zero

6.5 GRENDEL AR-15 The Fail Zero FZ-6.5 GRENDEL 01-NH bolt carrier group is designed for precise performance and durability in AR-15 platforms chambered for 6.5 Grendel. Crafted from high-quality...

9MM BLACK NITRIDE BCG The Fail Zero AR-9 Complete Bolt Carrier Group is engineered for reliable performance and durable operation. Crafted from high-quality steel and coated with a black nitride...

.308 WIN. (DPMS PATTERN) AR-10 The Fail Zero AR10 Complete Bolt Carrier Group (Part Number: FZ-AR10-NH-FZ) is engineered for optimal performance and durability in military and tactical applications...

7.62X39MM AR-15 The Fail Zero FZ762X3901NH Bolt Carrier Group is designed for reliable performance with 7.62x39mm caliber AR15 rifles. Crafted from high-quality steel, this complete bolt carrier...

6MM ARC The Fail Zero 6mm ARC Complete Bolt Carrier Group is engineered for reliability and durability in your rifle. Crafted from high-quality steel, this bolt carrier features a precision finish...

6.8SPC AR-15 The Fail Zero FZ68SPC01NH bolt carrier group is designed specifically for 6.8 SPC rifles, providing reliable performance and durability. Crafted from high-quality steel, this complete...

.458 SOCOM AR-15! The Fail Zero FZ45801NH bolt carrier group is designed for optimal performance with your AR15 platform, compatible with .458 SOCOM and .450 Bushmaster calibers. Crafted from durable...

.450 BUSHMASTER AR-15 Upgrade your AR15 with the Fail Zero FZ45001NH Complete Bolt Carrier Group, designed for optimal performance with .450 Bushmaster and .458 SOCOM calibers. Crafted from durable...

.224 VALKYRIE AR-15 The Fail Zero FZ224V01NH bolt carrier group is engineered for reliable performance in your AR15 platform, compatible with .224 Valkyrie and 6.8 SPC calibers. Crafted from...

5.56MM FULL AUTO AR-15 BLACK The Fail Zero AR-15 Complete Bolt Carrier Group (Part Number: FZM16401NHBLACK) is designed for optimal performance and durability in your firearm. Crafted from...

5.56MM FULL AUTO AR-15 The Fail Zero FZM16401NH bolt carrier group is a high-quality, complete assembly designed for AR-15 rifles chambered in 5.56mm. Crafted from durable steel, this bolt carrier...

LIGHTWEIGHT 5.56MM AR-15 The Fail Zero AR-15 Complete Bolt Carrier Group is engineered for reliability and performance in semi-automatic firearm applications. Crafted from durable steel, this bolt...