Ruger Magazine Spring for ALL Modern Ruger “Mark” Pistol magazines 1 2 3 4 IV & all 22/45

Description This spring fits in ALL Mark series magazines with the plastic base pads (from factory)Will NOT fir old chrome base Mark 1 magazines. Fresh spring can help feeding issues with full mags. Click Here for our page on how to properly adjust your magazines to feed properly *NO RUGER magazine comes from Ruger perfect.