870 or m3? : airsoft- cyma m3 shotgun ,The M3 looks more "complete", and not having iron sites is kind of annoying. By the way, the M3 IS usable in a pump action mode. It's a dual-action shotgun, like the SPAS-12 (the Cyma M3 has a charging handle that moves with the pump, which is fun.) Link toCYMA m870 or M3 metal shotgun? : airsoft - redditr/airsoft: For all things airsoft. Please read the rules, Wiki/FAQ, and use the search bar! Im looking into getting one of CYMA's metal trishot spring shotguns, but im wondering if theres any benefit to either their M3 or M870 body styles.