If you would rather use a
mounting plate, I just added it at the store. It's the same one used with the Prodigy sticks, sans the slot for the actuator.
The red actuator part underneath on the TopFire does come off though. I usually just pry up on it with a very broad headed screwdriver and then spin it around on do the same on the opposite side. If you do this a couple of times carefully, it should pop off without damaging it.
RandyT