Introducing the Yankee Hill Machine 431528A Mini Q.D. Flash Hider - specially tailored for YHM\'s high-speed sound suppressor systems. This compact device measures merely 2 1/8\" and weighs a light 3.3 ounces, being precisely engineered to meet the demands of today\'s competitive shooters. Despite its miniature size, no compromises have been made in its design and function. The Mini Q.D. Flash Hider can be comfortably used both with and without a suppressor, demonstrating its excellent versatility. It is compatible with an array of suppressors including Turbo T2\'s, Turbo K\'s, Resonator\'s, Resonator R2\'s, Resonator K\'s, Nitro .30, all Phantom .30 caliber suppressors, as well as our innovative R9 9mm and Nitro N2O sound suppressors. This attachment device should ideally be torqued between 20 and 30 ft-lbs for optimal performance.