Minnesota-based Off Grid Suppressors began selling the MERC and SCORPIUS in Grade 5 titanium plus the MINI MENACE and AGENT INCO 9K in Inconel, with a fifth model called MENACE. HUB adapters come boxed with AGENT INCO 9K, MENACE and MERC, whereas MINI MENACE and SCORPIUS mount via 1/2×28 direct thread. SCORPIUS recorded 115.4 dBA muzzle readings as the quietest rimfire unit in Thunder Beast Arms 2025 testing, which the firm calls the quietest .22 suppressor nationwide.