Ruger manufactured 22/45 Mark III magazine.
NOTE: This electroless nickel steel magazine will ONLY fit the 22/45
model (the model with the synthetic grip frame) of
the Mark III. If you have the model of the Mark III with a
metal grip frame
you need the
M10MKIII Ruger Mark III magazine.
Note: Ruger
has advised us that these magazines will not work in the Ruger Mark I, Mark II, Mark III,
or Ruger 22/45 Mark II or Mark IV pistols.