How long is the fuse delay for the M67 grenade?

The M67 grenade features a fuse delay of approximately 4 seconds before detonation. This timing is critical for ensuring that the grenade can be thrown safely and by a sufficient distance after activation, allowing the thrower to take cover. The 4-second delay also provides enough time for the grenade to travel towards its target, maximizing its effectiveness without allowing it to be easily avoided by the enemy. Understanding this timing is essential for infantry operations, as it affects tactics, positioning, and safety procedures in combat situations.