Hi Mal, an interesting proposal you have there. In theory the UV light would not be an issue in and of itself as I believe you have extra lighting options on the 6.3 version board used in Andrews models. So you could in possibly run one off the system to get your tracer rounds. The thing is I don’t believe you could do is have a barrel that smokes and fires BB,s. I will double check with Andrew and get back with a definite answer for you.