Are the Ruger Mark III and 22/45 uppers swapable?

Discussion in 'Ruger Handgun Forum' started by drvsafe, Jul 12, 2013.

  1. drvsafe

    drvsafe New Member

    I am buying a 22/45 Target and was curious; if I find a deal on a Ruger mark 2 or 3 metal lower will the 5.5" bull barrel from my 22/45 fit on it?