Compatible Mags for Ics Mp5

[BigStew]

Hi all looking to find out what mid caps are compatible with an ICS MP5. running a search found king Arms mags do but you can't find them in stock any where so any other brands people aware of? 

[ljnl]

Hi, I'm using G&P midcaps (GP128-P) in my ICS MP5 (MX5-Pro), fit snug and feed perfect. 

They are, however, easy to pull down out of the magwell without pushing the mag-release button (but they won't drop out). Probably solvable by grinding a bit of material (steel) of the mag catch-indent on the mag. It has not been an issue for me yet so I've left it as is.