You can easily add IR to a BB tank but its the BB to IR that is a bit more challenging. Clark or similar lets you choose the BB or IR setting. Add the IR emitter and its ready whenever you change the settings. An easy flash solution is just run a temp led to the muzzel if thats what you want for IR.

Simple.

Better is get an old BB unit and gut it. Put the HL high intensity unit into it and all you gotta do is remove the turret. The remove the two screw holding the airsoft unit in. Swap it with your gutted one including the flash unit.

http://rctanksaustralia.com/images/u...upgrade_21.jpg