ASAI One Pro 45

The One-Pro 45 (stylized as onepro.45 or one PRO.45) is a semi-automatic pistol chambered in .45 ACP (with some variants in .400 Cor-Bon) and manufactured in Wettingen, (previously Solothurn) Switzerland. It was at one time imported into the United States by Magnum Research and into Italy by ALGIMEC.