PSA 10.5" Phos Carbine-Length 5.56 NATO B5 MLOK Upper Without BCG & CH, Black

Barrel: Chrome-moly barrel. Chambered in 5.56 NATO, with a 1:7 twist, M4 barrel extension, and a carbine-length gas system. This barrel is phosphate coated and finished off with a B5 M-Lok carbine-length handguard, an F-Marked gas sight base, and an A2 flash hider.Upper: Forged 7075-T6 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.**This Upper Does NOT Include BCG or Charging Handle**