The Mossberg 590A1 Tactical Pump Action Shotgun was selected by the U.S. Armed Forces. After passing the rigors of MILSPEC qualification. the 590A1 is the duty weapon of choice for military and law enforcement agencies worldwide. Features: Mil-Spec construction - the only pump-action shotgun to pass Mil-Spec 3443E Heavy-walled barrels has a parkerized finish Metal trigger guard and safety buttons Clean out magazine tube