Disclosure: Handguards will either be keymod or mlok depending on availability. If you have a preference, please leave in the comment at checkout and we will try to accommodate the request.
The AR-15 Complete Upper Assembly has an 18″ 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 15″ rail, an M4 flat top forged upper receiver with forward assist, a proprietary bolt carrier group, birdcage flash hider and a charging handle. It is chambered in .450 Bushmaster and machined with feed ramps in the barrel extension.
All Finished Barrels go through a 100% Inspection Process.