I saw one in a magazine yesterday. Gunnut is right, it's a tip up single shot pistol. As for the trigger, any competent gunsmith should be able to improve it at least to a point. If they can fix an NEF they ought to be able to do one of these. As for using a buffing wheel on trigger parts, please don't do this. There is a reason those parts have crisp, sharp edges. If you buff them they don't any more. Use the correct stones properly, not a buffer. (Though I get to repair a lot of triggers that people have done this to. It is a money maker if I can get the correct parts.)