PSA 16" Carbine-Length M4 5.56 NATO 1/7 Nitride MOE EPT Rifle Kit & Rear MBUS - 516447449

Barrel: Nitride finished 4150V chrome moly vanadium 16" barrel. Chambered in 5.56 NATO, with a 1:7 twist, M4 barrel extension, and a carbine-length gas system. this M4 barrel is is finished off with Magpul MOE carbine-length handguards, 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. 158A(R) steel bolt, Shot Peened, High pressure tested, Mag particle inspected, Gas Key Hardened to USGI Specifications, Fastened with Grade 8 screws, and Staked Per Mil-Spec. 8620 steel M-16 profile carrier is chrome lined and phosphate coated.Build Kit: PSA EPT MOE Lower Build KitIncludes 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 a electroless nickel coating.Everything you need to finish your stripped lower!Includes: MagpulA(R) MBUS Rear Sight, Black