In an Unknown Episode, James Lester fires three bursts from an EMD.
The team use them to shoot at the Giant Burrowing Insect, where it is useless, as the rounds bounce off the creature. Matt then calls in conventional weapons, or, more commonly known as guns.
EMDs are only mentioned in this episode, but not seen.
As Matt Anderson whips the raptor, it leaps to him, but Emily Merchant finds his EMD just in time and stuns it. Later in the episode, Becker shoots a raptor several times as it attacks and kills Henry Merchant.
Matt Anderson uses the EMD to fight of a pack of Future Predators. Abby and Connor also use the small versions on the predators.