ASAI ORLIKON One Pro 45acp Swiss Made but CZ Inspired & Martin Tuma Designed One Pro 45 pistol. Designed by Martin Tuma for Advanced Small Arms Industries (ASAI) in Solothurn, Switzerland, it is manufactured by Oerlikon in Zurich, Switzerland, and imported by Magnum Research of Minneapolis, Minnesota. Tuma was responsible for the Swiss-made Sphinx AT 88 and AT 2000 CZ-75-based pistols, and that lineage is apparent in many respects. In the late 1990s, it was aimed initially at meeting the demanding requirements of SOCOM units. The One Pro45 combines proven short-recoil operation, all-steel construction, and large-caliber with a modern single-action/double-action trigger, a frame-mounted decocking lever, and a patented, automatic firing pin safety. Accuracy and service life are enhanced by the full-length rails—interior on the frame and exterior on the slide and both the slide and frame are made of chromium-nickel-molybdenum steel. The barrel rises to lock against the rear of the ejection port and unlocks by dropping downward. There is no pivoting barrel link. Locking and unlocking are controlled by cam surfaces machined into the lower part of the barrel acting on the slide stop pin. The hole for the barrel in the front of the slide is drilled at a downward angle which assures a tight lock-up to the barrel even after many rounds. There is no barrel bushing and a full-length, steel guide rod is used along with a multi-strand, braided recoil spring. A slot cut into the right face of the breach incorporates a robust extractor, and this slot holds the rim of the cartridge as it is released by the magazine. A white-dot sight system is standard. The front blade has one white dot while there are white dots on either side of the rear notch. The rear is drift-adjustable for windage. Both front and rear sights are mounted in large, wide dovetail cut into the top of the slide. There is a wide but shallow rib on top of the slide. Small checkered areas are cast into the front strap and backstrap, like on the Sphinx guns, to assist gripping. The grips are a bit too smooth and will not cause chafing. The smooth trigger is mounted inside a firing pin safety prevents movement of the firing pin unless the trigger is pulled. Out of the box, the One Pro45 offered one of the best triggers pulls ever for a factory pistol. Single-action pulls were light and crisp with very little slack or creep. Double-action pulls were very lightweight with linear loading and a predictable, crisp let-off. No doubt accuracy was enhanced by the excellent qualities of the trigger. As befits a serious, self-defense pistol, the finish of the One Pro 45 is all business. Steel parts are finished with a low-polish guard that is generous enough for a gloved finger ... https://www.youtube.com/watch?v=yrcHZXQJSY8