Parts have been lightly polished and sharp edges smoothed for crisper action. Trigger is very crisp on its break point, iv had many compliments on the trigger action as well as the pistol as a whole. Mods: -Remkote Butter Bearing -Guarder BBU -Guarder Slide -Guarder Guide rod w/recoil spring -SS buffers -M.L Autobot Bucking