The Yankee Hill Machine Mini QD Flash Hider is a highly anticipated quick detach Flash Hider for YHM's sound suppressor systems. The Mini Q.D. Flash Hider is YHM engineering perfection. Compact at only 2 1/8" inches and weighing in 3.3 ounces, the Mini Q.D. Flash Hider was designed for today's competitive shooter. No short cuts were taken, and users will find that the Mini Q.D. Flash Hider is still capable of being shot comfortably unsuppressed as well as suppressed.Must locate on the shoulder behind the thread.Features2 1/8" overall length3.3 Oz.Phosphate finishThese flash hiders ARE COMPATIBLE with: Turbo T2's, Turbo K's, Resonator's, Resonator R2's, Resonator K's, Nitro .30, all Phantom .30 caliber suppressors, as well as R9 9mm, NITRO N2O sound suppressors and Wraith 9 XL.These flash hiders WILL NOT fit: Original TURBO, Phantom 5.56mm/.223 suppressors, Wraith 45 XL, Phantom .338.The device should be torqued to between 20 and 30 Ft-lbs.