Blackout Dynamics Quantum DTL-X .300 BLK 9" Complete Upper Black Forward Assist The Blackout Dynamics Quantum DTL-X .300 Blackout 9" complete upper receiver in black delivers precision engineering and extreme rigidity for short-barreled builds, available now at Battlehawk Armory. Featuring a forward assist upper and the proprietary Dual Taper Lock system, this upper pairs a precision-lapped 416-R stainless barrel with a free-float M-LOK handguard for outstanding alignment and durability. The 9-inch barrel uses a 1:5" twist and pistol-length gas system optimized for both subsonic and supersonic .300 BLK ammunition. Built from aerospace-grade aluminum with enhanced walls, the Quantum DTL-X offers monolithic-like rigidity between the upper and handguard while remaining compatible with standard mil-spec lowers. The enhanced .30-caliber barrel extension improves feeding reliability across a wide range of loads, and the M-LOK handguard provides extensive accessory mounting options. Finished in black, this complete upper is ready to drop onto your lower for a high-performance .300 Blackout setup. Engineered for shooters who demand accuracy, reliability, and a rock-solid platform in a compact package. Add the Blackout Dynamics Quantum DTL-X .300 BLK 9" Complete Upper in Black with Forward Assist to your collection at Battlehawk Armory today. Specifications Manufacturer: Blackout Dynamics Model: Quantum DTL-X Complete Upper Caliber: .300 Blackout Barrel Length: 9" Barrel Twist: 1:5" Barrel Material: 416-R Stainless, Precision Lapped, 5R Rifling Gas System: Pistol Length Upper Type: Forward Assist Finish: Black Handguard: M-LOK Free-Float Mounting System: Dual Taper Lock (DTL) Compatibility: Mil-Spec AR-15 Lower Receivers Additional: Enhanced .30 Cal Barrel Extension