Ares Amoeba Stubby Mag Maintenance

[FirsthandSnow]

HI guys, would any of you know how to disassemble the Ares stubby mags? They are not like other mags in that there is no hex screw on the bottom holding the units to the outer. There are however two tabs at the top, front and back, but even depressing both the unit wont shift. I feel if I were to prise it much further I could damage it.

Any advice would be great

Thanks and stay safe