Upgrade Nerf Nite Finder to use LASER

The nerf nite finder is pretty good - its easily moddable, and relatively cheap.  However the targetting light is... pathetic?  Anemic?  Useless?

So I found a cheap laser module and here's how it fits...

Step 1 Get the parts

You'll require a nerf gun to modify, and a laser module to install.  I got my laser from
http://www.dealextreme.com/p/2-5mw-dot-laser-module-3v-46391
Its a 3 volt module, so I could reuse the pair of AA batteries already in the toy.

DX also has laser modules with a cross shape, and a line.  However I figured the dot would be best.
Be wary of 3.7 volt modules on the site, they might not even lase on 3.0V

Tools
- Small Philips screw driver to undo the case screws
- Side cutters to cut and strip wire
- Soldering iron etc for joining wires, could just twist wires together.
- Tape or heatshrink to insulate joint
- Hot Glue Gun and glue, to fasten wires and module in
- knife or dremel to trim tube