Volquartsen Extended SafetyFits Ruger Mk II, Mk III, and Mk III 22/45 (NOT Mk II 22/45) The Extended Safety provides improved access to the safety on the Ruger MK series Pistol. The Extended Safety is the perfect addition when being used with the Volquartsen Target grips. This safety is .150" longer than the factory button. Comes complete with safety detent and spring. Please note: The Mk II 22/45 pistol requires a different safety. Please Visit our Volquartsen Home Page!