The PMR-30 is a lightweight, full size pistol (.22WMR). The PMR-30 operates on a unique hybrid blow back/locked-breech system, allowing for the use of a wide variety of ammunition as it seamlessly adjusts depending on the pressure of the cartridge. It uses a flush fit, 30-round double stack Zytel nylon magazine with round count ports. The trigger is a crisp single action with an over travel stop. It has a thumb-activated ambidextrous safety lever.
The slide locks back after the last shot and a manual slide lock lever is also provided. The slide and barrel are 4140 steel, the frame is 7075 aluminum. The grip, slide cover, trigger, mag release, and safety levers are glass reinforced nylon (Zytel). 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, and captive coaxial recoil springs. It has a fluted barrel for light weight and effective heat dissipation. PMR30 disassembles for cleaning by removal of a single pin.