This is experimental and still in development.  This is a +2rd extension.  The extended locking spring clip print profile is necessary to have the mag body lock into the baseplate.  The factory metal clip will work, but the body will not be retained.  So far I have only been able to get +1 rd and it does not feed well.  I have only been able to print one version thus far with minimal testing, so let me know if you have any suggestions during your testing to improve the design.  The baseplate height may need to be extended overall to fit +2.

I have updated to the v2 version.  This has some internal angles changed, spring support bump out guides, and rounds and chamfers to hopefully help with function.