Tippmann Omega Works great no issues Stock other than aftermarket Hopup Internal Regulator to adjust velocity; no need for secondary regulator Crisp trigger pull Preset ROF; selectable from 10, 15, or 25 rounds per second Runs on standard 9 volt battery 2 steel 3k psi tanks 2 carbonfiber 4500 psi tanks 1 ninja 48/4500 thank $650 for everything can negotiate depending what tanks go