Fail Zero
Shop Fail Zero at Arms East. U.S. shipping and Canadian PAL export available.
- AR15 Bolts Add to cart
Fail Zero’s complete bolt carrier group is engineered for .224 Valkyrie with nickel boron coating and EXO treatment for enhanced durability and performance. Drop-in design installs directly into most MIL-SPEC uppers without modification.
$172.00In Stock - AR Bolt Carrier Groups Add to cart
Fail Zero 450 Bushmaster Nickel Boron Bolt Carrier Group features EXO Nickel Boron coating for permanent dry lubricity and extreme durability, arriving fully assembled for immediate installation into mil spec .450 Bushmaster Upper Receivers.
$172.00In Stock - AR15 Bolts Add to cart
Fail Zero 6.8 SPC Bolt Carrier Group with EXO Nickel Boron coating delivers permanent dry lubricity and extreme durability. Fully assembled and ready to install in most Mil-Spec upper receivers.
$172.00In Stock - AR Bolt Carrier Groups Add to cart
Fail Zero AR-15 5.56 NATO Bolt Carrier Group features proprietary EXO Nickel Boron treatment for enhanced durability and reliability. The drop-in design fits most MIL-SPEC AR15 uppers for straightforward installation.
$157.00In Stock - Other AR15 Accessories & Parts Add to cart
Fail Zero AR-15 Basic Semi-Automatic Bolt Carrier Group features EXO Nickel Boron coating on all critical components for permanent dry lubricity and extreme corrosion resistance. Fully assembled and ready to install in mil spec AR15 upper receivers.
$172.00In Stock - Other Gun Accessories & Parts Add to cart
Fail Zero EXO Nickel Boron treated .308 WIN bolt carrier group in DPMS pattern delivers superior corrosion resistance and smooth operation. Drop-in compatible with most mil-spec AR10 uppers.
$266.00In Stock - AR15 Bolts Add to cart
Fail Zero Bolt Carrier Group for 5.56 NATO AR-15s features EXO Nickel Boron treatment for enhanced durability and reliability. Compatible with both 5.56 and .223 ammunition, this complete semi-auto BCG assembly drops into most MIL-SPEC AR-15 uppers.
$142.00In Stock - AR Bolt Carrier Groups Add to cart
Fail Zero Bolt Carrier Group for 7.62x39mm AR-15 platforms features EXO nickel boron treatment for enhanced durability and drop-in MIL-SPEC compatibility. Complete with bolt, extractor, M16 cut carrier, cam pin, and carrier key.
$172.00In Stock - AR15 Bolts Add to cart
Fail Zero Lightweight 5.56 NATO AR-15 Bolt Carrier Group delivers 21% weight reduction with EXO Nickel Boron finish and drop-in MIL-SPEC compatibility. Complete steel construction includes bolt, extractor, cam pin, carrier key, and firing pin for semi-auto operation.
$225.00In Stock - AR15 Bolts Add to cart
Fail Zero M16/M4 5.56 NATO Full Auto Bolt Carrier Group delivers a complete, drop-in solution with EXO Nickel Boron treatment for MIL-SPEC M16/M4/AR15 uppers. Compatible with both 5.56 and .223 ammunition.
$157.00Low Stock
