Extended Bolt Release for Ruger MK II and Mk III (Not 22/45) Convert your Ruger Mk II or Mk III bolt release to a convenient thumb tab that works just the the bolt release on a 1911. Made by Majestic Arms. (Note: Does not fit 22/45 models).  E...

Extended Bolt Release for Ruger MK IV (Not 22/45)This part gives a larger, grippier surface for your thumb to engage the Ruger Mark IV bolt release. Releasing the bolt after a magazine change takes less effort and becomes more natural. It's especially...

Aluminum Magazine Base Pad for Ruger Mk II, Mk III, Mk IV  Magazine Base Pads are common in action pistol shooting because they give more reliable seating of magazines under speed loading situations. But with the Ruger Mk II and Mk III pistols,...