BCA AR-15 Complete Upper Assembly, 18" 4150 Black Nitride Heavy Barrel, Fluted 6.5 Grendel, Mid length gas system, 1:8 Twist w/ 15" Lightweight Keymod
- 18" 4150 Black Nitride Barrel w/ 1:8 Twist
- Heavy Barrel Profile w/straight Flutes
- 15" Lightweight Keymod
- 6.5 Grendel Type II Caliber
- Mid Length Gas System
- BCA Standard BCG
- Charging Handle
- Bird Cage Flash Hider
The BCA branded complete upper assembly has a 18" 4150 black nitride fluted heavy barrel in a 1:8 twist rate and 15" Lightweight Keymod. This complete upper receiver is chambered in 6.5 Grendel Type II and machined with .300 black out 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|
|Caliber||6.5 Grendel Type II|
|Feed Ramp||.300 Blackout|
|Gas System||Mid Length|
|Gas Block System||0.750|
|Charging Style||Rear Charging|
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