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ASAI AG (Advanced Small Arms Industries AG) is a Swiss firearms manufacturer known for the One Pro 45 and One Pro 9 pistols.

Last updated September 26, 2026

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Nov 4, 2026
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Overview

ASAI AG, whose full name is Advanced Small Arms Industries AG, is a Swiss firearms manufacturer. The company is identified in public reference sources as a maker of small arms, with its documented product line including the One Pro 45 and One Pro 9. As a Swiss firearms producer, ASAI operates in the specialised small-arms segment of the defence and security industry, a field dominated by established European and American manufacturers. Detailed public information about the company's founding date, ownership structure, headquarters location, and current commercial status is limited, and the brand is primarily known through its named pistol models. The One Pro 45 and One Pro 9 designations suggest chamberings in .45 calibre and 9mm respectively, consistent with the naming conventions common to handgun manufacturers. Beyond these core facts, the public record on ASAI AG is sparse, and the company does not appear to have the broad market visibility of larger firearms brands. Its inclusion in reference works reflects its status as a recognised, if niche, participant in the Swiss and international small-arms market.

History

ASAI AG, formally Advanced Small Arms Industries AG, is a Swiss firearms manufacturer. Public reference sources identify the company as a producer of small arms, with its documented products including the One Pro 45 and One Pro 9. The company's name indicates a focus on advanced small-arms design and manufacturing, positioning it within Switzerland's long-established firearms and precision-engineering tradition. Switzerland has historically been home to a number of small-arms makers serving both domestic and export markets, and ASAI appears to belong to this specialised segment. Detailed historical information — including the exact founding date, founding personnel, corporate ownership, and the timeline of product introductions — is not available in the supplied public record. The brand is chiefly known through its two named pistol models, the One Pro 45 and One Pro 9, which represent its principal documented commercial offerings. As with many niche firearms manufacturers, the company's public profile is limited, and its products are of interest primarily to the defence, law-enforcement, and civilian shooting markets. No verified information is available regarding mergers, acquisitions, leadership changes, or changes in corporate status.

Products and positioning

  • One Pro 45

    A pistol model manufactured by ASAI AG.

  • One Pro 9

    A pistol model manufactured by ASAI AG.

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