BCA AR-15 Complete Upper Assembly, 16" 4150 Parkerized M4 Contour Barrel, .300 Blackout, Carbine Length Gas System, 1:7 Twist w/ 15" M-LOK

SKU# 2062 | by Bear Creek Arsenal
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The BCA AR-15 Complete Upper Assembly has a 16" m4 contour barrel profile made of 4150 chrome moly vanadium steel with a parkerized finish, a carbine length gas system and a 1:7 twist. The assembly includes a 15" M-LOK rail, an m4 flat top forged upper receiver, a proprietary bolt carrier group, a charging handle and a bird cage flash hider. It is chambered in .300 Black-Out and machined with .300 blackout feed ramps in the barrel extension.

The BCA upper assembly, like all BCA products, is subjected to numerous QA/QC checks which for our firearms and upper receiver assemblies includes test firing prior to approval and shipment. This upper assembly is also backed by our BCA limited lifetime warranty. Choose an upper assembly designed by a U.S. company and made in the U.S.A. Choose BCA.

BCA DOES NOT recommend using steel cased ammo in our Assemblies or Rifles.

SKU UA300CM41617(P)-(15)M-LOK
Weight 4.0000
Length 16
Profile M4 Contour
Twist 1:7
Finish Parkerized
Material 4150 Chrome Moly Vanadium
Thread Pitch 5/8 x 24
Caliber .300 Blackout
Feed Ramp M4
Flutes N/A
Gas System Carbine
Gas Block System 0.750
Gas Hole Diameter 0.085
Charging Style Rear Charging
Color No
Dimpled No


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