Sure, there are plenty of rifle-length barrels on the market chambered for the 300 Blackout, but don't you want an upper receiver that can run any kind of 300 Blackout load, whether it's subsonic or supersonic? Of course you do. That's why Stag Arms crafted these dedicated Stag-15 Blackout upper receivers, which are equipped with barrels perfectly suited for use with the 300 Blackout cartridge. Each Stag Arms Stag-15 Blackout upper receiver is matched with an 8-inch barrel treated with a QPQ-nitride finish and rifled with a 1:8-inch twist rate. The barrels are finished with Stag's Slimline handguard, giving you plenty of real estate for accessories, and you even have a nice A2 birdcage flash hider to handle the muzzle flash from hot 300 Blackout loads running in your gun.
DOES NOT INCLUDE BOLT CARRIER OR CHARGING HANDLE
Stag 15 .300 Blackout 8 in Upper