Selected by the U.S. armed forces after passing the rigors of mil-spec qualification, the 590A1 is the duty weapon of choice for military and law enforcement agencies worldwide. 590A1 models are built for the most demanding on-duty conditions with Parkerized heavy-walled barrels, metal trigger guards, and safety buttons standard on all models. Inside, they feature dual extractors, twin action bars, positive steel-to-steel lock-up, and an anti-jam elevator combined for reliable, smooth operation. Offered in 12 gauge, the 590A1 chambers 2.75" and 3" factory shotshells. This model features a full-length tubular magazine, a tri-railed forearm, a Picatinny top-rail, and XS ghost ring adjustable sights.