The Ghost-M 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.Specifications: CALIBER RATING: 45ACP .357Mag 9mm 30 Carbine 300BLK (Subsonic) ENERGY RATING: 850 ft lbs BORE DIAMETER: 45ACP LENGTH (SHORT): 6.2 inches LENGTH (LONG): 8.75 inches DIAMETER: 1.375 inches WEIGHT (SHORT): 9.6 ounces WEIGHT (LONG): 12 ounces MATERIALS: Stainless steel Titanium Aluminum FINISH: Cerakote body Nitride attachments USAGE: With stainless steel baffles you don?t have to worry about overworking the Ghost-M. BARREL RESTRICTIONS: None FULL AUTO RATED: Yes