For sale is one AimTrak light gun module installed in one red Act Labs gun shells. The AimTrak firmware has been upgraded to the latest version (v1.6), and is working great.
*EDIT* The picture below shows two guns, but only one is for sale. The other has already been sold. *EDIT*
Note: This sale does not come with an LED bar.
There are two buttons on the Act Labs guns, but only the trigger is working. The button on the back of the gun is wired to the AimTrak pcb, but there is a mechanical problem where the back button click does not register. There is a spring that is supposed to activate the micro snap switch when you press the button, but somehow after opening and closing the gun housing, the spring no longer activates the switch. The trigger works great, though. The slide switch is present on the Act Labs pcb in the gun housing if you wanted to hack into it for extra functionality. It has a 3-meter USB cable.
Everything was bought new, and has seen very little use. New, it would cost:
AimTrak w/out LED pcb: $36 + shipping
Act Labs red gun: $20 + shipping
But you can have it for the low price of: $45 shipped to the US.
Edit: Price drop.
Second Edit: One gun sold, only one remaining.