Description
This BCA AR-15 complete .450 Bushmaster rifle length upper has a 18" heavy barrel with a parkerized finish, and features a 1:24 twist rate, with a mid-length gas system. It includes the new 15" MLOK rail, an M4 flat-top forged upper receiver, a BCA bolt carrier group, a flash hider, and a rear charging handle, and the BCA Muzzle Brake. This .450 Bushmaster upper is compatible with any mil-spec AR-15 lower.
More Information
SKU 9420N-UA450MHB18124P-15M3MB
Weight (lbs) 6.300000
Magazine Capacity N/A
Barrel Length 18
Profile Heavy Barrel
Twist 1:24
Barrel Finish Parkerized
Material 4150 Chrome Moly Vanadium
Thread Pitch 5/8 x 32
Caliber .450 Bushmaster
Feed Ramp Single
Flutes Non-fluted
Gas System Mid Length
Gas Block System 0.750
Charging Style Rear Charging
Classification Complete Upper Assembly
Platform AR-15
Bolt Material E9310
Receiver Material Forged
