PSA 16" MID-LENGTH NITRIDE 5.56 NATO 1:7 MOE FREEDOM UPPER & REAR MBUS W/ BCG & CH, FDE - 516447123

Barrel: 16" 4150V barrel length Chambered in 5.56 NATO, with a 1:7 twist, M4 barrel extension, and a mid-length gas system. This A2 profile barrel is nitrided finished for durability. Barrel is finished off with a .750" diameter F-marked front sight base with sling swivel, Magpul MOE Flat Dark Earth Handguards and an A2 flash hider. Upper: Forged 7075-T6 A3 AR upper is hard coat anodized black for durability. Featuring M4 feedramp cuts, these upper upper receivers are made for us right here in the USA. Bolt Carrier Group:  Shot peened Carpenter 158 Bolt, MP tested & phosphate coated. Full auto profile steel carrier is chrome lined and phosphate coated.  Chrome lined gas key is fastened with grade 8 bolts and staked per mil-spec. Includes:  Magpul® MBUS Rear Sight, Black