BCA AR-15 Complete Upper Assembly, 16" Parkerized 4150 Heavy Barrel, .300 Blackout, 1:8 Twist, w/ 12" Lightweight Keymod Rail, .750 Gas Block Diameter
- 16" Parkerized 4150 Chrome Moly Vanadium Barrel w/ 1:8 Twist
- Heavy Barrel Profile
- 12" Keymod Rail
- .300 Blackout Caliber
- M4 Flat Top Upper Receiver
- Carbine Length Gas System, .750 Diameter Gas Block
- BCA Standard BCG
- Charging Handle
- Bird Cage Flash Hider
The BCA AR-15 Complete Upper Assembly has a 16" heavy barrel made out of 4150 steel with a parkerized finish and a 1:8 twist rate. The assembly includes a 12" lightweight keymod, a m4 flat top upper receiver with forward assist, bolt carrier group, bird cage flash hider and charging handle. It is chambered in .300 Blackout and machined with .300 blackout feed ramps in the barrel extension.
The BCA complete 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||0.750|
|Gas Hole Diameter||0.125|
|Charging Style||Rear Charging|
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