PSA 16" M4 Nitride 5.56 NATO 1:7 MOE+ CTR Rifle Kit w/ Rear MBUS, Flat Dark Earth - 5165449583

Barrel: 4150V Chrome Moly steel barrel chambered in 5.56 NATO with a 1:7 twist rate, M4 barrel extension, and a carbine-length gas system. The barrel is finished off with a Magpul MOE M-LOK Flat Dark Earth handguard, F-Marked gas sight base, and A2 flash hider.  Upper: Forged 7075-T6 A3 AR upper is machined to MIL-SPECS and hard coat anodized, features a forged upper receiver. These uppers are made for us right here in the USA by a mil-spec manufacturer.  Bolt: Full-auto profile bolt carrier group. Gas Key Hardened to USGI Specifications, Fastened with Grade 8 screws, and Staked Per Mil-Spec.   Build Kit: PSA Magpul MOE+ CTR Lower Build Kit Magpul CTR Carbine Stock, Magpul MOE+ grip, and Magpul MOE trigger guard, Palmetto State Armory EPT Lower Parts Kit and Mil-Spec diameter 6-position buffer tube assembly. Everything you need to finish your stripped lower!  Includes: Magpul® MBUS Rear Sight, Black