Our 8.5” 300 AAC Black out barrels are black nitride coated and made from 4150V with 5/8×24 threads suitable for any .308 flash hider/muzzle breaks. They come with a 1/7 twist and with the right ammo and shooter will hold tight groups. Perfect for any 300 BLK SBR or pistol build and also sold as a complete side charging upper.
8.5 inches, 300 AAC BLK Caliber 1/7 twist, made from 4150V, nitride coated with 5/8×24 threaded muzzle.
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