Brimstone Gunsmithing
Hello: On semi auto rifles I'm having a hard time imagining a single stage trigger. That said, if the take up is minimized, clean, and the break clean and crisp, that is truly awesome! David the owner of Brimstone, started with 10-22's and built a deserved excellent reputation. I talked to him about expanding to Mini's because of their following being large and in need of trigger work. So mine was the first and it is perfect! He is cheap, quick, and very talented. If anyone here has used his services I'm sure they would say the same thing.
Good luck with your piece
CHill