DPMS DP-15 Shortacle Features The Shortacle is equipped with a 10.5 inch chrome moly vanadium barrel finished in nitride and cut with a 1 in 7 inch twist supporting reliable performance with modern 5.56 loads. A low-profile gas block paired with a carbine-length gas system helps ensure consistent cycling while the A2-style muzzle device uses a 1/2 inch by 28 thread pattern. The M4 barrel extension and full-auto profile bolt carrier contribute to durability and compatibility. Built on forged 7075-T6 receivers this pistol uses an M4 slickside upper and a 10.5 inch lightweight M-Lok handguard for accessory flexibility without unnecessary bulk. The Carpenter 158 steel bolt mil-spec fire control group and 7075-T6 aluminum buffer tube provide proven AR reliability. An adjustable DPMS CAR-15 blade brace and A2 pistol grip complete the configuration for a familiar and functional shooting experience. DPMS DP-15 Shortacle Specifications Manufacturer: DPMS Model: DP-15 Shortacle Type: AR Pistol Caliber: 5.56 Barrel Length: 10.5 Barrel Profile: A2 Barrel Steel: Chrome moly vanadium Barrel Finish: Nitride Barrel Extension: M4 Twist Rate: 1:7 Gas System Length: Carbine Diameter at Gas Block: .750 Gas Block Type: Low-profile Muzzle Device: A2-style Muzzle Thread Pattern: 1/2 x 28 Receiver Material: Forged 7075-T6 Receiver Type: M4 slickside Handguard Type: 10.5 lightweight M-Lok Bolt Material: Carpenter 158 steel Bolt Carrier Profile: Full auto Fire Control Group: Mil-spec Grip: A2 pistol grip black Buffer Tube Material: 7075-T6 aluminum Adjustment: 6 position Pistol Brace: DPMS CAR-15 adjustable blade brace