Concussion Grenade

Not to be confused with Stun Grenade from the sequel.

Item Synergies

 * Partnering this item with the Permafrost is delightful.

Character Synergies

 * Characters that have a fast rate of fire, such as the Commando, will greatly benefit from this item, near possibility of stun-locking an enemy with a good amount of stacked items.

Trivia

 * The chance to stun reaches roughly 100% at 384 pickups.