RMG 19 is a Pistol Gas-Thrower, it's legal in Poland even without special permission(s).
It's range is 0,5 to 2 meters.
Realistic look of a Pistol (Glock's Replica) might cause enemies to reconsider attack.
One gas ammo container is enough for about 6 shots, it's reload time in trained hands is 5 seconds.
Gas is alcaloid capsaicin (OC) - chemical substance causing strong chokes, heats & inability to easily breathe - it renders unconscious attacking enemies for 30 minutes (even if they are under effect of alcohol or narcotics).
Gas in container is effective for 3 years.