Fail Zero Bolt Carrier Group - 5.56mm Full Auto Ar-15 Gun Cases heavy-duty web sling and spine

heavy-duty web sling and spine

With generally higher power CPUs and radios

A switchable drain lock in the floor plate comes standard on all l7s

Rides close to the body

Height: 30 mm / 1-3/16 in

Fail Zero Bolt Carrier Group - 5.56mm Full Auto Ar-15 Gun Cases heavy-duty web sling and spineThis Bolt Carrier Group (BCG) comes fully assembled and ready to drop into most mil spec M16" M4 or AR15 upper receivers. All critical parts are coated with EXO Nickel Boron technology that provides permanent dry lubricity, extreme durability and increases both wear and corrosion resistance. Features : Nickel Boron treated Extreme durability Dry lubricity Corrosion resistant