Herb,
The Meg-Gar bases will not work in the fxo type mags as they are identical to the earlier design of mag bases. The two types are completely different.
I concur with Lonnie, if you find a source let me know! Numrich has them, but they are cheap pieces of junk. I tried one and they are a waste of money. <img src="graemlins/crying.gif" border="0" alt="[crying]" />