Diabolos are projectiles that are fired from air rifles, air pistols with rifled barrels, and CO2 guns.
The most commonly used Diabolos have a diameter of 4.5mm. However, there are also Diabolos available in other, larger calibers.
Depending on the intended use, Diabolos of various shapes (pointed, hollow point, flat head, round head, etc.) and different materials are used.
The most significant manufacturer of Diabolos in Germany is H& N.