This Ruger pistol Charging Ring helps improve your grip and puts an end to sore, pinched fingers when charging your Ruger MKIII, MKIV or 22/45 pistol. Ambidextrous design, this Charging Ring allows for easy charging for both left and right-handed users. Charging Ring is perfect for competition shooters who might need to quickly charge the pistol or clear a jam. This stylish pull ring design works with holsters and looks so cool fitted. Made of hardened alloy, this Charging Ring won’t add extra weight. Two colour options 1) Black 2) Silver NOTE: Does not fit Mark I or Mark II pistols. However I can special order these, same cost but 3 week delay. + I have 222 Loctite listed and its recommended to use on the screw.