||I see a lot of compatibility questions here:
Wanna give what I know
I only own KWA, VFC, G&P and TM AR15/M4 platforms.
The EMags are designed for magazine wells that are on the thinner side.
It fits perfectly and feeds 100% in KWA magwells.
same with the TM stock bodies.
It will feed into a G&P and VFC body, but the mag is a bit loose and only feed if you pust them up a bit. If you have a VFC or G&P and want these to feed, all you need to do is add a few strips of duct tape to the inside of the magwell and it should fit fine.
I have tested in my buddies King Arms and G&G combat machines and they fit, but I never got a chance to test if they feed right. They, again, were on the slightly looser side, so adding some tape will help.
I own 10 of these, and by far they have been one of the best investments I have ever made. They dont have a long break in period, require very little maintenance and feed excellently :)
If you have a G&P body or any body with a wider magazine well, I suggest the PMags.
Rating: [5 of 5 Stars!]