Description
This Bear Creek Arsenal AR-15 Complete 5.56 rifle length upper has a 16" M4 with a parkerized finish, and features a 1:7 twist, with a mid-length gas system. It includes a 15 1/4" MLOK rail, a M4 flat-top billet upper receiver, a BCA bolt carrier group, flash hider, and a rear charging handle. This 5.56 upper is compatible with any mil-spec AR-15 lower. This has the new handguard.
More Information
SKU 126N-UA556MM41617PBUR-15M3
Weight (lbs) 5.300000
Magazine Capacity N/A
Barrel Length 16
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 Mid Length
Gas Block System 0.750
Charging Style Rear Charging
Classification Complete Upper Assembly
Platform AR-15
Bolt Material E9310
