What you need:
1. A Firestrike
2. Small diameter wire (Not sure how big, mine was salvaged)
3. Soldering iron
4. A white LED (Not sure about kind/size. Once again, mine was salvaged)
6. Knife/something to scrape off old solder with (Optional, but useful)
7. Hot glue gun (Optional, but useful)
Get your blaster.
Open that muhfuhkah up!
Take out mostly everything beside the black thing.
Pull out the black thing. Notice the clips on the back. Push them together and pull the black thing off the circuit board.
You will see the small red LED. Get rid of it. I used a soldering iron to heat the solder around the LED pegs so I could remove it.
Once your red LED is off, you should just have this circuit board. Notice the circle where the LED was. It has the + and - holes labeled. These labels will come in handy later.
Now on to making your white LED. Take your wire and cut off a few inches (Remember, you can always make it shorter). Solder it to the LED. I used white for positive and green for negative (I later switch to red for positive and black for negative).
Add some space-filling material around the base of the LED. I just used cardboard and some duct tape.
Pry the lens off of the black piece with a small screwdriver.
Place the LED in the black piece. Your space-filling material sould keep the LED centered and should keep it from going up or down. To further secure it, add some hot glue to attach the cardboard to the black thing.
Thread the wires out the back like so. Like I said, I switched from white and green to red and black (Red = positive, black = negative).
Solder your wires to the circuit board. This should be pretty easy, seeing as the holes are labeled.
Put the pegs on the black thing back into the holes on the circuit board so it latches back into place.
Put the finished assembly back into your gun.
Put the plunger and anything else back in.
Close up your gun and screw it back together.
And you're done! Pretty simple, right? Just some basic soldering really. I've included some pictures of the final thing at the end. If you have any questions, please feel free to ask.
Also, if folowing this was too hard for some reason, I made a video. It's made with the same pictures, it just has my voice over them to help a little more.
Edited by SoftButFirm, 19 March 2013 - 06:38 PM.