PSA "Sabre" Forged 8.5" Nitride .300 Blackout w/ Riflespeed Gas Block and Sabre QD Rail

Barrel: The Nitride treated 4150V chrome moly steel is chambered in .300 Blackout, with a 1:5 twist rate, M4 barrel extension, and Pistol-length gas system. This barrel is finished off with a PSA 7.25" Sabre QD Rail, Rifle speed adjustable gas block, and a Sabre compensator.Upper: Forged 7075-T6 A3 AR upper is made to MIL-SPECS and hard coat anodized for durability. These uppers are T-Marked engraved.Bolt Carrier Group: Father's of Freedom BCG by Microbest with Sprinco Extractor Spring and Carpenter 158 MP Bolt.