Barrel: Phosphate finished 4150V chrome moly vanadium 16″ barrel. Chambered in 5.56 NATO, with a 1:7 twist, M4 barrel extension, and a Mid-length gas system. Barrel is is finished off with Magpul MOE Mid-length handguards in Flat Dark Earth, F-Marked gas sight base, and A2 flash hider.

Upper: Forged 7075-T6 A3 AR upper is made to MIL-SPECS and hard coat anodized for durability. These uppers are made for us right here in the USA by a mil-spec manufacturer.Bolt: Full-auto profile bolt carrier group. Milspec Carpenter No. 158® steel bolt.  Gas Key Hardened to USGI Specifications, Fastened with Grade 8 screws, and Staked Per Mil-Spec.

Build Kit: Includes Magpul MOE Stock,  Pistol grip, and trigger guard, Palmetto State Armory EPT  Lower Parts Kit and Mil-Spec diameter 6-position buffer tube assembly.  EPT Lower parts kit upgrades the standard combat-style fire control group with a single-stage, target-style,  fire control group with polished contact surfaces and an electroless nickel coating.

Everything you need to finish your stripped lower!

Includes: Magpul® MBUS Rear Sight, Black