Richard Fraser shared to us via Facebook this tutorial of having 40mm pyros which can be launched with your existing M203 airsoft launchers. When we mean pyros these are either smoke grenades or pyro grenades that are supplied by companies such as TLSFx or Enola Gaye. Watch the video below and we suggest that if you have concerns about safety of such pyro projectiles, you can participate by giving comments, opinions and suggestions on making it even safer to use.

Also a video of it used in an actual airsoft game during the Stirling Airsoft OP: Primed Fist in Catterick last June 2014 can be watched right below the tutorial.