BCA AR-15 Complete Pistol Upper Assembly, 7.5" Parkerized 4150 Steel Heavy Barrel, .300 Blackout, 1:7 Twist w/ 7" Free Floating Quad Rail
- 7.5" Parkerized 4150 Chrome Moly Vanadium Barrel w/ 1:7 Twist
- Heavy Barrel Profile
- 7" Quad Rail
- .300 Blackout Caliber
- M4 Flat Top Upper Receiver
- Pistol 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 7.5" heavy barrel made of 4150 steel with a perkerized finish in a 1:7 twist rate. The assembly includes a 7" free floating quad rail, a rear charging forged upper receiver, bolt carrier group, bird cage flash hider and a charging handle. It is chambered in .300 blackout and machined with .300 blackout feed ramps in the barrel extension.
The BCA AR-15 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||0.076|
|Charging Style||Rear Charging|
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