31-79 JGb215

The  (also known as the "Baby gun" and the "Shrink gun") is a Wonder Weapon that appears in the Zombies map, Shangri-La. It causes zombies to shrink, having big heads but small bodies. Once they are shrunk the player can run into them to kick them and send them flying and kill them. Otherwise, small zombies can be killed with one shot or knife hit. Unlike the V-R11, the effect is linear.

When Pack-a-Punched, the weapon becomes "The Fractalizer". It has increased ammunition and the effect on the zombies lasts longer.

Achievements/trophies

 * Small Consolation - Shrink every zombie type with the 31-79 JGb215.

Trivia
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 * There is a strange logo which resembles a rocket ship.
 * There is a small Naga statue on the top of the weapon, similar to the stone statues found on the map. It also seems to have moving fins underneath it on both sides.
 * It plays a key role in the Shangri-La Eclipse Easter Egg
 * Zombies affected by it have a very high voice. This is likely caused by their necks being shorter and thus their vocal cords being shorter.
 * When shot, it appears to make Zombie Monkeys disappear.
 * It is the first Wonder Weapon to not do any damage at all under any circumstances.
 * Napalm and Shrieker Zombies are affected by the 31-79 JGb215 for a very limited time, only for approximately 1 second.
 * This is the third Wonder Weapon that doesn't keep part of its name when upgraded, the first being the Thundergun and the second being the Scavenger.
 * It is the second gun to have its crosshairs expand when the player rotates, the first being the Ray Gun.
 * One should be careful when using the 31-79 JGb215 on Napalm Zombies; their explosion still does damage and can down the player if he/she does not have Juggernog. It is therefore advised to shoot them instead of kicking them.