Franchi SPAS-12
The Franchi SPAS-12 was a combat shotgun used on Earth in the late 20th century. 

In 1996, , a member of an anti-government militia in Arizona, wielded the Franchi SPAS-12. He held Chakotay and B'Elanna Torres hostage by pointing his shotgun at them. Later, he fired the weapon at The Doctor before he was stunned by a phaser. ()

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 Weapons used in Voyager
Hand-held weapons
Projectile weapons