Yeah, for that bloody "glow-in-the-dark" room :P
I'm definitely going to be looking into a small reflex sight and a couple high cap mags, as well as extra batteries... As well as mods to put a larger battery in there. I've heard the 7.2 runs out after about 6 high cap mags (100rnds)
The only thing to really clean out is the inner barrel and thats just to make sure its free from obstruction so it does not get scratched or damaged.
Can that simply be accomplished with a long Q-tip like thinger?