Jaceen, my understanding is that you can use RT trigger frames on standard mags, but you will need to use a spacer of some sort for the banjo bolt hole to be able to use the standard mag thumbscrew. However, I'm not totally sure, so definately do a search here or better yet on Automag Org to find out.
Other PM's responded to.
TOTShadow, I didn't get your PM. Try re-sending it maybe.