the balystik takes up to 1000psi input (which is the output for most standard paintball type tanks, like the tippman) and can output anywhere between about 20-200 psi.
http://www.highpressureairsoft.co.uk/store/p73/Tank%2C_Line_and_Regulator_Package.html
that kit should do, although i can't say if the fittings they're using are the same as your tapp mag, although they look pretty similar.