Anyone into cowboy action should be good to go to. I know some ppl who have had their coach guns altered to open to a greater angle and have had the chambers polished so that fired hulls fall out easily at the flick of the wrist. Ribs can be drilled and tapped for lasers and reflex sights as well. Triggers can be polished and pull weight reduced. Forearms can be altered to fit hands or changed so that they force you to point you supporting hand which helps some ppl shoot faster