Product Description
Factory Ruger Stainless Magazine Latch / Button for Mark 3 and 4 PistolsWill not fit any 22/45 and not needed on Mark 1 or 2 series.
Spring and plunger are separate parts
NOT FOR MARK 1, 2 or ANY 22/45 or LITE
If your magazine is "popping" out, this may fix it.