Barrel: PSA CHF Chrome Lined 14.5" M4 profile barrel chambered in 5.56 NATO with a 1/7 twist, M4 barrel extension, and a carbine-length gas system. Barrel is finished off with an F-marked front sight post with side sling swivel, quad rail handguard with vertical grip and rail covers, and a pin and weld Surefire Warcomp.Upper: Forged 7075-T6 A3 AR upper is made to MIL-SPECS and hard coat anodized black 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.