Step 8: Stuff the Blaster
I put the 4 AAA battery pack in the magazine housing, and made a little cap for it that looks like the end of a magazine.
The Speaker that came with the Radio Shack Sound Module was a perfect fit inside the PVC endcap. I drilled sound holes in the end of the cap.
Once you get the circuitry in place, you can solder up the connections to the effects and stuff the remaining wiring where ever you can fit it.