The Mossberg 590A1 is the shotgun that passed the U.S. military's Mil-Spec 3443E test, and the Professional variant here is built with a marine-grade corrosion-resistant finish and an optics-ready receiver, with an 18.5-inch barrel in 12 gauge. The A1 designation means the features that matter under abuse: a heavy-walled barrel, a metal trigger guard and safety button, and a metal magazine follower.

The tang-mounted safety remains the most intuitive control on any shotgun, equally usable left- or right-handed. Between the marine finish and the optic cut, this is a shotgun built for coastal, boat and hard-service duty where lesser guns rust out.

This firearm ships to your chosen FFL dealer for transfer. Order online from Dawson Defense, an Arizona-owned licensed dealer and importer.