BCA AR-15 Complete Upper Assembly: 18" 4150 Black Nitride Heavy Barrel, 1:8 Twist, 6.5 Grendel Type II, Straight Flutes, 15" MLOK Rail
- 18" 4150 Black Nitride Barrel w/ 1:8 Twist
- Heavy Barrel Profile w/ Straight Flutes
- 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 an 18" 4150 black nitride heavy barrel in a 1:8 twist rate and you can select from a 15" MLOK rail. This complete upper receiver is chambered in 6.5 Grendel Type II and machined with .300 black outfeed 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|
|Gas System||Mid Length|
|Gas Block System||0.750|
|Charging Style||Rear Charging|
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