138
3185
450
556
https://www.msrdistribution.com/firearms-handguns?specs=manufacturer%3arock+island+armory%21%21610%21%21%7c%7cmanufacturer%3aptr+industries%21%21596%21%21%7c%7cmanufacturer%3acharter+arms%21%21170%21%21%7c%7cf_type%3apistol%21%21-1%21%21