BCA AR-15 Complete Upper Assembly, 16" Parkerized 4150 Heavy Barrel, .300 Blackout, 1:8 Twist, w/ 10" Free Floating Quad Rail, .875 Gas Block Diameter
- 16" 4150 Parkerized Barrel w/ 1:8 Twist
- Heavy Barrel Profile
- 10" Quad Rail
- .300 Blackout Caliber
- M4 Flat Top Upper Receiver
- Carbine Length Gas System,
- BCA Standard BCG
- Charging Handle
- Bird Cage Flash Hider
The BCA Complete Upper Assembly has a 16" 4150 Parkerized barrel, 1:8 twist rate and a 10" Free Floating Quadrail. This complete upper receiver is chambered in .300 Blackout and machined with M4 feed ramps (both in the lower and barrel extension) and comes with a BCA BCG and charging handle.
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.
|Material||4150 Chrome Moly Vanadium|
|Thread Pitch||5/8 x 24|
|Gas Block System||0.875|
|Charging Style||Rear Charging|
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