The Ghost 45 is a modular centerfire multi-caliber pistol/subgun suppressor that is rated all the way up to 300 blackout sub-sonic. It's full-auto rated for when things get exciting and features a unique patent pending modular design. Break it down to the short configuration and you have the smallest and quietest .45 can in its class. When it's time to be scary quiet, the Long configuration is the way to go. A combination of 17-4 stainless steel, titanium, and anodized 7075 aluminum materials in all the right places ensure rugged reliability and minimum weight. *Weight and length will vary with various attachments (piston/spring, fixed mounts, 3-Lug) **Booster assembly included. Does not include piston. Pistons sold separately.