Airsoft landmine, powered by Co2 or ULTRAIR power gas. great for guarding an area, and scaring the opponents. Load the mine with powder, like flour or corn starch, and hide it under some light cover, like leaves, when stepped on, it will release it's content along with a loud blast. For safety reasons no BB's can be used, as they might fly up under peoples face protection.
It is recommended to use Co2 for maximum power.