This AR-15 Complete Upper Assembly has a 16″ heavy barrel made out of 4150 chrome moly vanadium steel with a parkerized finish, a 1:24 twist rate and a carbine length gas system. The build includes a standard handguard rail, an M4 flat top forged upper receiver with froward assist, a proprietary bolt carrier group, birdcage flash hider and a charging handle. It is chambered in .450 Bushmaster and machined with a single feed ramp in the barrel extension.
All Finished Barrels go through a 100% Inspection Process.
Inspection Equipment includes CMMs and Air Gauges for the Bores.
These won’t last!!
In stock and shipping daily!!