BCA AR-15 Complete Upper Assembly, .300 Blackout, 10.5″ Parkerized Heavy Barrel, 1:8 Twist, Pistol Length Gas System, 10″ MLOK Split Rail|Upper


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SKU: 852-UA300PHB10.518P-10MSR Category:


This BCA AR-15 Complete Upper has a 10.5″ barrel with a Heavy Barrel profile, made of 4150 Chrome Vanadium with a Parkerized finish, and features a 1:8 Twist Rate, a Pistol length gas system

The Upper includes a 10″ MLOK Split Rail, an M4 flat-top upper receiver with forwarding assist, a BCA Bolt Carrier Group, a Flash Hider, and a Charging Handle. It is chambered in .300 Blackout and machined with 300 Blackout feed ramps in the barrel extension.

This BCA AR-15 Complete Upper, like all BCA products, is subjected to numerous QA/QC checks which for our firearms and complete upper receiver assemblies includes test firing prior to approval and shipment.

Choose an upper designed by a US company and made in the USA. Choose Bear Creek Arsenal.

*Note – We strive to provide the most accurate photographs of our product. Variations may occur in the skeletonized section of the handguard/flash hider you receive.

SKU    852-UA300PHB10.518P-10MSR

Weight            3.7000

Length             10.5

Profile Heavy Barrel

Twist   1:8

Finish Parkerized

Material           4150 Chrome Moly Vanadium

Thread Pitch    5/8 x 24

Caliber            .300 Blackout

Feed Ramp      .300 Blackout

Flutes N/A

Gas System     Pistol

Gas Block System       0.750

Gas Hole Diameter     0.125

Charging Style            Rear Charging

Color   Black

Dimpled          Yes

Product Type Complete Upper Assembly

Magazine Capacity     N/A

Platform          AR-15


Additional information

Weight 4 lbs
Dimensions 22 × 4 × 4 in


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