For the attachment known as Explosive Rounds on some weapons, see FMJ.
"Gives 30% max stock Explosive ammo to all weapons."
Explosive Ammo is an Ammo Type in Call of Duty: Ghosts in Extinction mode. It costs $1250 to deploy. It is one of the most powerful ammo types, as it causes a lot of splash damage. It can be found in Chaos Mode, and once obtained, it will continue to affect all weapons, including ones that are picked-up later on.