Barrel: 4150V Chrome-moly vanadium steel, chambered in 5.56 NATO, with a 1:7 twist, M4 barrel extension, and a mid-length gas system. The A2-style profile barrel is phosphate treated and finished off with an .750" diameter F-marked front sight base with sling swivel, Magpul Mid-length FDE handguards, and an A2 flash hider.
Upper: Forged 7075-T6 A3 AR upper is hard coat anodized black for durability, and M4 feedramp cuts, These upper upper receivers are made for us right here in the USA.
Bolt Carrier Group: For AR15 and M16 rifles and carbines. Bolt is made of shot-peened, Mil-spec Carpenter 158® steel. Gas key is secured with grade 8 fasteners and staked. Bolt carrier is parkerized outside and chrome lined inside. Includes Charging Handle.
Lower Build Kit: Includes Mil-Spec size Flat Dark Earth MOE Stock, Grip , and trigger guard, Palmetto State Armory Lower Parts Kit and 6-position Mil-Spec diameter buffer tube assembly.