The Rock Island Armory STK100 9mm is a semiautomatic, single/double-action pistol with a 10-round magazine capacity. Featuring a steel frame, this handgun comes with a parkerized, applied finish. The pistol also includes an optic-ready slide with lightening cuts/serrations. Rock Island Armory STK100 9mm Handgun - Handgun Semiauto Center Fire at Academy Sports
