Arminius still exists and their revolvers have improved in quality. They are now known as Weinrauch and make the EAA Windicator and Bounty Hunter. If yours is a reliable shooter, you might as well hang on to it and use it as you won't be able to sell it for much. It should be safe with present 35 kpsi ammo, but I'd avoid the specialty loads from folks like Buffalo Bore and Double Tap.