What's in the Box Diamondback DB15 5.56 Nato AR Pistol Magpul Gen M2 PMAG Owner's Manual The Diamondback Firearms Carbon DB15 Pistol is a compact and versatile semi-automatic pistol chambered in 223 Rem | 5.56 NATO. Equipped with a 7-inch barrel and a 30+1 capacity, this firearm is lightweight, durable, and designed for optimal performance, making it suitable for tactical and recreational shooting. Firearm Features MOE Magpul Grip Threaded Barrel Firearm Specifications Manufacturer: Diamondback Model: DB15 Caliber: 5.56 Nato Barrel Length: 7" Overall Length: 25.50" Twist Rate: 1:8 RH Finish: OD Green Sights: None Grips/Stock: Magpul MOE Magazine Capacity: 30-Rounds