Description

Ruger Magazine 90231, 90046, 90062 BASE BLOCK for Ruger Mark 2 3 4 IV Standard Frame Pistols (NOT 22/45)

WILL NOT FIT 22/45
Factory Ruger 90231 Base Block
This is the base that is used on 90231 and 90046 magazines
It is also the same as what is used on 90062 only in Black

You can use this to change your 90229 and 90599 magazines to fit Standard frames vs. 22/45
Will also change your 90045 magazine to fit MK2, MK3 and MK4 standard frame pistols

Click Here for our page on how to properly adjust your magazines to feed properly
*NO RUGER magazine comes from Ruger perfect.