The 12-gauge shotgun is a manually operated (pump), repeating shotgun with a seven-round tubular magazine and a modified choke barrel. It is equipped with a bayonet stud, sling swivels and a standard length military stock. This special-purpose weapon is used for guard duty, prisoner supervision, local security, riot control and any situation that might require the use of weapons of limited range and penetration but maximum stopping power.
Various models of shotguns have been in service use since 1901. The current inventory consists of three different 12 gauge shotgun models: the Remington 870, Winchester 1200 and Mossberg 590.