Mossberg 940, Pro Tactical SPX, Semi-automatic Shotgun, 12 Gauge, 3 Chamber, 18.5 Barrel, Optic Ready, Heat Shield, 7 Rounds, Includes Mounted Holosun 407K 85179 Mossberg has taken the 940 Pro Tactical to the next level. From the innovative forend/heat shield combination, to the added shotshell carrier, to built-in fiber optic ghost ring sights, and new adapters to allow even more direct optic mounting choices, Mossberg has loaded the 940 Pro Tactical - SPX series with the functional, high-end features shooters are looking for in a tactical autoloader.