Heckler & Koch UMP

A UMP40 was a type of submachine used by John Quinn.

Day 7
Quinn used a UMP40 to shoot and kill Senator Blaine Mayer at his home, before shooting at Jack Bauer who was escaping out of the window. Quinn pursued Bauer to a construction site, and used the gun to shoot through the locked gate. He then entered a cabin where he believed Jack was hiding and shot many rounds into the cupboards and walls in effort to kill Jack. However Jack was outside with an excavator and flipped the cabin. Quinn held onto his weapon and climbed out of the shack, but Jack disarmed him and then killed him with a screwdriver. Later, Larry Moss investigated Mayer's death and noted that he was killed with a UMP40. He deduced that Jack would have trouble acquiring such a weapon while on the run, casting doubt on Jack's supposed role in Mayer's death.