Description
This Bear Creek Arsenal AR-15 Complete 5.56 pistol length upper has a 11.5" M4 with a parkerized finish, and features a 1:7 twist, with a carbine length gas system. It has a 9.5" MLOK rail, a M4 flat-top billet upper receiver, a BCA bolt carrier group, flash hider, and a right-side charging (gen 2) handle (patent pending). This 5.56 upper is compatible with any mil-spec AR-15 lower.
More Information
SKU 106N-UASCH556CM411.517P-10M3
Weight (lbs) 3.600000
Magazine Capacity N/A
Barrel Length 11.5
Profile M4 Contour
Twist 1:7
Barrel Finish Parkerized
Material 4150 Chrome Moly Vanadium
Thread Pitch 1/2 x 28
Caliber 5.56 NATO
Feed Ramp M4
Flutes Non-fluted
Gas System Carbine
Gas Block System 0.750
Charging Style Right Side Charging
Classification Complete Upper Assembly
Platform AR-15
Bolt Material E9310
Receiver Material Billet
