My buddies wife has the TM mp5a4 and I have the ICS. My 9.6 wont fit in her gun. Maybe its just these two but the TM seems to have another inch of plastic at the front of it stopping the fit. Atleast that's the difference between ours.
The 8.4's are a good choice though. Never had an issue with them so long as they are good cells.
__________________
|