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...