I haven’t ventured into any mods to my newly acquired 15-22 except for making certain that the pic rail was tight then I mounted a cheap Bushnell RD and a Bushnell 3X Mag. At 25 yds I’m shooting 1-5/16 groups with a full mag and CCI LRN. That said, I will be looking for a new trigger. There are a lot of them to choose from. Any suggestions?