What I wanted to test more than the Mark IV action itself was a reduced weight 22/45 Lite outfitted with these new features. Sooner than I hoped, Ruger launched the polymer-framed Mark IV 22/45 ...

A new takedown button on Mark IV models makes it a snap. Shown here is the Hunter (far. l.) in stainless steel and the polymer-frame 22/45 Lite. When I was introduced to William B. Ruger ...