Summary

A friend from Thingiverses sent me this, was told I could share it.

He said he glued it to the magazine with JB Weld plastic weld (JBWeld 2 part Plastic Bonder)

This is just a magazine grip extension...to allow for easy removal of the stock recessed 10 round Ruger magazines

-edit- 2/16/19 Added "Shorty" version