Parts required-V2 front and back sensor, V2 Firestorm, 6-8 feet of elastic (coiled) phone cord, spare IR sensor (cannibalized from V1 back sensor or other source), soldering iron, wire strippers, electrical tape, hot glue gun, ball cap, cheap sunglasses, cardboard.

1) Take the back sensor (still in its black package) of the V2 out of its housing and attach it above the barrel of the Firestorm with the electrical tape.

2) Then removed the front sensor from the housing and splice in 6-8 ft of phone cord so it reaches to the head.

3) To make a 360 degree head sensor I took the sensor chip out of a V1 back sensor and soldered it to the back of the V2 front sensor.

4) I then hot glued this to the top of a ball cap so it can be hit from all sides. I then taped the front sensor shell (minus the straps) to the left side (opposite the battery door) with electrical tape. I taped it so that I could change the batteries of the sensor and then retape it back on.

5) To improve daylight sensitivity buy cheap sunglasses with plastic lens and cut it into 1x1 cm squares. Attach these with tape or glue to cover the IR sensor (middle left)

6) To improve indoor play of the Firestorm or pistol make a Pinhole cover. This will eliminate Infrared bouncing off the walls and all the problems associated with that (such as hitting yourself and people behind barriers and even in other rooms).

To make a Pinhole cover take a piece of sturdy cardboard and poke a hole in it 2mm in size. Then make a grid of at least 9 pinholes (3 by 3 or 5 x 5) with the 1st being the center of the grid. Then tape it to the front of the barrel.

The indoor range will still be 50-70 ft, but this will significantly reduce outdoor range to 20-30 ft, so only use it for indoor games. The target size will also be greatly reduced to about 12-18 inches in diameter, so now you have to aim carefully, no lucky shots anymore. So far I have not been able to make a workable pinhole cover for the PRO vests.

You now have a V3, a self-contained long-range tag gun with head and gun sensors and improved daylight and indoor sensor performance. This works fine with the ELS and I have made 8 such V3s for my group and they worked great.

-peter montgomery