This should be an interesting video from Rock Bottom Airsoft as he talks about the 40mm grenades for use in airsoft as well as budget launchers to use them with... "In this video we are going to take a look at two affordable 40mm Airsoft grenade launchers, some green gas grenades, basics on how to use them and a test fire to see the effect they produce. I think they are great, not the most effective in game but certainly fun.

I don't cover every variant available here. There are vast numbers of launchers and grenades available to us airsofters but these are ones I've had experience with.

Remember to always wear eye protection and face protection when handling these 40mm grenades. Never assume they are unloaded and point them in a safe direction. Do not load these in an area where other players may not have eye protection."