Soldat Airsoft Taiwan (SAT) sent in news about their High Performance Output Valve for Marui M870 Gas Shotgun... "We have completely redesigned the output valve of the Tokyo Marui M870 to withstand heavier gasses like green gas and red gas. Our product also greatly improves gas efficiency as it eliminates all valve leakage problems.

For more information, visit SAT's official website at http://www.sat-gunshop.com."