Light Gun

 is a gun that fires piercing zaps of light at enemies. The last bullet in the magazine is a duck, which will automatically seek out the nearest enemy and attack them. The duck can pierce enemies and disappears after damaging 2 enemies. It can damage the same enemy twice.

Trivia

 * This gun is a reference to the NES Zapper.
 * The duck being shot is a reference to Duck Hunt, one of the most well-known games to use the NES Zapper.
 * The gun's appearance with the synergy is a reference to the NES Zapper's original US colors, rather than the redesigned orange.
 * The description heavily implies that the Light Gun originally belonged to The Cultist.
 * The synergy is a reference to the NES Zapper being sold as a peripheral for the NES. The dog that appears is a reference to the NES game Duck Hunt and the horror VR game based on it Duck Season.
 * The Synergy is likely a reference to the Hard Light Exotic Weapon in Destiny 1 and 2.