Mossberg's 590A1 XS is a 12 gauge pump shotgun that features a 20" heavy-walled barrel with a cylinder bore and safety buttons built to Mil-Spec demands. It features a clean-out tube, metal trigger guard and safety, black rubber buttplate, and a drilled and tapped receiver. This model features a Parkerized metal finish, a bayonet lug, and XS ghost ring sight.