” The Mossberg Model 500 shotgun has been around for over half a century, being introduced in 1961. It is one of the most popular shotguns ever built, with Mossberg just recently producing the ten millionth Model 500 shotgun. The Model 500 design is the basis for the entire line of Mossberg pump shotguns, including the military Model 590A1, which serves the US military and law enforcement market, with variations of the Models 590 and 590A1 available for the civilian market as well. Still, the basic Model 500 has endured for five decades because it is a very affordable shotgun, and it works very well.
The Model 500 is available in dozens of configurations that fill quite well the role of a fighting shotgun, and the one shown here is their Thunder Ranch variation. Thunder Ranch is a world-renowned firearms training facility in Oregon, founded and directed by Clint Smith. Mr. Smith is well-known as a firearms instructor and writer, and has successfully run Thunder Ranch for twenty years, training shooters in the defensive and offensive use of firearms. The Model 500 Thunder Ranch shotgun shown here was designed in cooperation with Mr. Smith, and has pretty much everything needed to serve as a fighting shotgun.”
Video at the link