PSA 16" Classic M4 Freedom Upper with BCG & Charging Handle, OD Green

Barrel: 4150V Chrome Moly Vanadium steel. Chambered in 5.56 NATO, with a 1:7 twist, M4 barrel extension, and a carbine length gas system. This M4 profile barrel is finished off with a standard handguard in Olive Drab Green, F-Marked gas sight base, and an A2 flash hider.Upper: Forged 7075-T6 A3 AR upper is machined to MIL-SPECS and hard coat anodized. 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.