Slide and barrel are 4140 steel, frame is 7075 aluminum. Grip, slide cover, trigger, mag release, and safety levers are glass reinforced Nylon (Zytel), much like other Kel-Tec Pistols. Magazine is Also Zytel and holds 30 rounds, with round count ports. Other features include: dual opposing extractors for reliability, heel magazine release to aid in magazine retention, dovetailed aluminum front sight, Picatinny accessory rail under the barrel, Urethane recoil buffer, captive coaxial recoil springs. PMR30 disassembles for cleaning by removal of a single pin.