This is a SilencerCo Barrel chambered in 9MM, model AC2413.
All pistol suppressors require a threaded pistol barrel. SilencerCo noticed a market need for high quality pistol barrels and stepped in to offer them. Holding to the same commitment to quality as all of their products" SilencerCo threaded barrels are tough enough to hold up under the harshest conditions. Made of 416R stainless steel and finished in black nitride (some models remain stainless). For use with a pistol silencer" you will also need a piston (sold separately). SilencerCo threaded barrels come with a thread protector.
Features:
Fits: P320 RX Full-Size, P320 Nitron Full-Size