M34 White Phosphorus Grenade

The M34 White Phosphorus Smoke Grenade or "Willie Pete" was a smoke/incendiary grenade manufactured by Rocky Mountain Arsenal from the late 1950s and used by U.S. forces during the Vietnam War and the First Gulf War. The M34 WP Grenade replaced the World War II M15 WP grenade.

Targets hit by an M34 grenade must roll to see if they catch fire. Additionally, the grenade creates a cloud of hot smoke that obscures vision. Attacks made through the smoke cloud suffer a -2 vision penalty. The cloud remains for 2d4 rounds (4d4 in an enclosed space).