The SilencerCo Omega 9k delivers phenomenal suppression in a compact package. Built for subguns like MP5, MPX, CZ Scorpions and popular PCCs. Fully welded construction handles 9MM, .45, and .300 Blackout (both subsonic AND supersonic). Length 4.70 inches, Weight 7.2 oz, 1.48 inch diameter. Constructed of Stellite and Stainless Steel. Full Auto Rated. Note: If this product is reflected as in-stock it means it's either physically in-stock or allocated and available (serial number is assigned) at my distributor