Since 1942, the M18 has been the standard colored smoke grenade for the US military. Common uses include signaling and targeting in addition to providing cover for troop movement.
- Made out of a cylinder of sheet steel with 4 holes in the top and 1 in the bottom to emit smoke.
- Colors: green, red, yellow, violet.
- Filled with 11.5 ounces of colored smoke mixture.
- Weight: 18 ounces.
- Produces smoke for 90 seconds.