PSA 16" Mid-length 5.56 NATO 1:7 Stainless Steel 15" Lightweight M-lok Upper With MBUS Sight Set - No BCG or CH - 5165448124

Barrel: 416R stainless steel barrel. Chambered in 5.56 NATO, with a 1:7 twist rate, M4 barrel extension, and a mid-length gas system. Barrel is finished off with a PSA 15" Lightweight M-Lok free float rail, .750" low-profile gas block, and an A2-style flash hider.Upper: Forged 7075-T6 aluminum A3 AR upper is made to MIL-SPECS and hard coat anodized black for durability. These uppers are made for us right here in the USA by a mil-spec manufacturer.Included: Magpul MBUS Sight Set, Black**Upper Does Not Include BCG or Charging Handle