BCA AR-15 Complete Pistol Upper Assembly, 10.5" 4150 Parkerized M4 Contour Barrel, 5.56 NATO, Carbine Length Gas System, 1:7 Twist w/ 10" Lightweight Keymod Rail
- 10.5" Parkerized 4150 Chrome Moly Vanadium Barrel w/ 1:7 Twist
- M4 Contour Barrel Profile
- 10" Keymod Rail
- 5.56 NATO Caliber
- Forged Upper Receiver
- Carbine Length Gas System, .750 Diameter Gas Block
- BCA Standard BCG
- Charging Handle
- Bird Cage Flash Hider
The BCA AR-15 Complete Pistol Upper Assembly has a 10.5" M4 contour barrel made of 4150 steel with a parkerized finish in a 1:7 twist rate. The assembly includes a 10" lightweight keymod, a rear charging forged upper receiver, bolt carrier group, bird cage flash hider and a charging handle. It is chambered in 5.56 NATO and machined with M4 feed ramps in the barrel extension.
The BCA AR-15 Complete Pistol 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||1/2 x 28|
|Gas Block System||0.750|
|Gas Hole Diameter||0.076|
|Charging Style||Rear Charging|
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