Product Description
Factory Ruger magazine base to convert your older 22/45 or standard frame magazines to fit MK IV 22/45
Will convert the following magazines; 90045 (MK2 22/45), 90231 (MK3, MK4 Standard Frame), 90229 (MK3 22/45)
Click Here for our page on how to properly adjust your magazines to feed properly
*NO RUGER magazine comes from Ruger perfect.
Convert your old magazines to fit your NEW MK IV 22/45 Pistol
