The SIG Sauer MCX Virtus .300 BLK Pistol with 9-inch barrel is an ideal suppressor host, with the 9-inch barrel providing complete .300 BLK powder burn while maintaining a compact pistol-classified package. Type: Pistol Action: Gas-Operated Caliber: .300 Blackout Capacity: 30 Year introduced: 2018, USA Weight: 6.3 oz Overall length: 26.5" Status: Active Military use: Yes Intended use: Suppressed Shooting, Home Defense, Tactical