Battle Rifle Company 12" Upper in .300 AAC Blackout (10.5" Barrel, 1:8 Twist)
This Battle Rifle Company upper is chambered in .300 AAC Blackout (7.62x35mm) and is built around a 10.5" barrel with a 1:8 twist. It is fitted with a Phase 5 10.5" handguard and a full-length Picatinny top rail.
Included with this unit are the BRC upper assembly, buffer tube, and a Gearhead Works Tailhook.

