Geissele Automatics, Super Duty Mod 1, Semi-automatic, AR, 223 Remington/556NATO, 14.5" Barrel, Pinned (16" OAL), HUXWRX QD 556 Flash Hider, Mid-Length Gas System, Anodized Finish, Black, 13.5" SMR MK16 Free Float M-LOK Handguard, B5 Systems Enhanced SOPMOD Stock, No Magazine