Iwata HP-CS Eclipse. It comes with a .35mm needle/nozzle, but you can swap in a .5mm set (I believe for the HP-BR but that may be incorrect). Since I use an HP-C+ for most of my detail work, my Eclipse usually runs the .5mm setup.
You can snag one for a great price at Hobby Lobby using their 40% off coupon, as well as the parts you might need.