Volquartsen Ruger MKIV Mark 4 MKIII Magazine Base Pad 22/45 5-PK VC4MRB-5
These will work with factory magazines and will also convert any Ruger MKIII magazine into a Ruger MK IV 22/45 magazine.
These only work with the 22/45
Mgazine Base Pad for MK IV, 5-pack
Volquartsen new Magazine Base Pads for the MK IV 22/45 make magazine insertion and removal quicker and easier-for lightning fast reloads.
CNC-machined from billet aluminum, these base pads will make those days at the range even more enjoyable as you switch magazines with ease.