Is the Tokyo Marui M870 Breacher Gas Shotgun the best airsoft shotgun? Maydaysan Airsoft gets one to take it through its paces in his review... "Today we debut the best airsoft shotgun on the market, The Tokyo Marui M870 Breacher! In Airsoft, shotgun gamplays are not very prominent, but I plan to give you more shotgun goodness from Japan!"