Rost Martin RM1S 9mm Luger Optics-Ready Polymer Handgun The Rost Martin RM1S is a compact, optics-ready 9mm Luger semi-automatic handgun designed for concealed carry and personal defense. Featuring a durable black polymer frame and a nitrocarburized steel slide, this striker-fired pistol delivers reliable performance in a lightweight, easy-to-handle package. The RM1S is chambered in the popular 9mm Luger cartridge and comes equipped with a 3.6-inch hammer-forged barrel. It has a 10-round magazine capacity, providing ample firepower in a concealable platform. The pistol's sights consist of a white dot front sight and a serrated black rear sight, allowing for quick target acquisition in various lighting conditions.