Fail Zero

A completely assembled, ready to install Semi-Auto Bolt Carrier Group with no Hammer This Bolt Carrier Group (BCG) comes fully assembled and ready to drop into most mil spec AR15 upper receivers...

This Semi-Auto Carrier Assembly is Mil-Spec grade, coated in EXO technology and will drop into any standard AR15, making for easy clean up and longer wear life. Contains: EXO Coated Semi-Auto...

A Nickel Boron coated Semi-Auto Hammer for your AR15 This EXO coated, single-stage, semi-auto hammer provides a permanently lubricious surface for extreme durability, increased wear and corrosion...

M4-type barrel extension has a self-lubricating EXO-treated Nickel Boron finish that aids in smooth, consistent feeding and helps prevent hang-ups. High-tech coating lasts the life of the weapon, and...

This fully assembled and NiB coated (5.56/.223) bolt assembly is compatible with most mil spec AR15, M16, M4 Carriers.  EXO Nickel Boron provides permanent dry lubricity; increased wear and...

AR-15 Cam Pin

EXO Coated Gas Key This EXO Nickel Boron coated gas key is hardened to USGI specs and provides a permanently lubricious surface for extreme durability and increased wear and corrosion resistance.

A completely assembled, ready to install Full-Auto BCG with no Hammer This Bolt Carrier Group (BCG) comes fully assembled and ready to drop into most mil spec M16, M4 or AR15 upper receivers. All...

A completely assembled Full-Auto Carrier Assembly ready to drop into your M16, M4 and/or AR15 This Full Auto Carrier Assembly is Mil-Spec grade, coated in EXO technology and will drop into any...

A Nickel Boron coated Semi-Auto Hammer for your AR15 This EXO coated, single-stage, semi-auto hammer provides a permanently lubricious surface for extreme durability, increased wear and corrosion...