Armscor STK200, Semi-automatic, Striker Fired, Full Size, Aluminum Frame Pistol, 9MM, 4 Barrel, PECVD Finish, Black, G10 Grip, Fixed Sights, 17 Rounds, 2 Magazines 56621 The STK200, a compact 9MM semi-automatic pistol with a 4" barrel, ergonomic design, and lightweight construction for versatile use in personal protection and recreational shooting.