.223

Diamondback Firearms, DB15, Semi-automatic Rifle, AR, 223 Remington/556NATO, 1:8, Medium Contour, 4150 CrMov, 16″ FDE Cerakoted Barrel, Mid-Length Gas System, Mil Spec OD Green Finish With FDE Furniture, 6 Position Stock, 30 Rounds, 15″ MLOK Handguard With Anti-Slip Texture Pads, 1 Magazine, Magpul FDE MBUS Sights, Shot-Peened BCG With Laser Logo, Enhanced Trigger Guard, Magpul MOE-K2 FDE Grip, Magpul FDE CTR Stock