Product Description
Factory Ruger Standard Blued Magazine Latch / Button for Mark IV 4 Pistols with Standard Frames
This is the STANDARD button on Mark IV Standard Frames that DO NOT HAVE Thumb Rest Grips
Factory Mark IV Pistols that include Thumb Rest Grips have a longer Magazine Release button
This will work in Mark 3 Pistols (NOT 22/45) and is .10" LONGER than standard Mark 3 button
Will not fit any 22/45 and not needed on Mark 1 or 2 series.
No Spring or Plunger included
NOT FOR MARK 1, 2 or ANY 22/45 or LITE
If your magazine is "popping" out, this may fix it.