Sig Sauer, M400, Tread V2, Semi-automatic Rifle, AR, 223 Remington/556NATO, 16" Stainless Steel Barrel, Flash Hider, Mid-Length Gas System, Anodized Finish, Black, Sig Sauer Grip, Magpul SL-K Stock, Free Float M-LOK Enhanced Handguard, SIG Matchlite 2 Stage Trigger, 30 Rounds, 1 Magazine