ABC RIFLE COMPANY AR .40 S&W Billet Pistol 4in Barrel Custom M-LOK Handguard Complete Upper Receiver w/BCG And Charging Handle Flat Dark Earth

ABC RIFLE COMPANY AR .40 S&W Billet Pistol 4in Barrel Custom M-LOK Handguard Complete Upper Receiver w/BCG And Charging Handle Flat Dark Earth. 40 S&W upper features a 6061-T6 billet aluminum receiver cut to mil-spec tolerances. Its fitted with a 4in top-cut MLOK handguard from ABC Rifle Co complete with an integrated handstop for enhanced control. The 4in 4150 CMV barrel with a 1:16 twist pairs perfectly with the direct-blowback system and its compatible with both Colt and Glock-style lowers. A