YHM, in cooperation with Sound Technologies, is proud to bring you the Stainless Phantom M2 .30 Cal. Sound Suppression System. This suppressor features 300 Series Stainless Steel and Inconel 718 construction for increased strength, superior durability, and amazing weight savings. The proven performance of YHM's Phantom Flash Hider eliminates 99% of muzzle flash while the Sound Technologies baffle design (U.S. Patent #7,073,426) reduces muzzle noise by up to 39 dB. The fast attach design allows you to permanently install the Phantom Flash Hider and then install the Sound Suppressor without the use of tools when sound suppression is desired. Our Phantom Flash Hider system holds the sound suppressor firmly in place by hand tightening and allows the sound suppressor to be removed by hand when no longer needed. A gas seal keeps the threads clean so the suppressor will not bind, making removal a breeze. The Phantom Flash hider supports the sound suppressor in two places making misalignment nearly impossible, even if the sound suppressor is not fully tightened. This sound suppressor is designed so that it can be used with a Phantom 5.56 mm flash hider on a 5.56 mm rifle. This allows users to purchase one sound suppressor and use it on .30 caliber and 5.56 mm rifles. As a measure of safety the 5.56 sound suppressor WILL NOT fit onto a .30 Cal. flash hider. - See more at: http://yhm.net/stainless-30-cal-q-d-phantom-m3.html#sthash.kQhCACev.dpuf