Double-barreled shotgun
The double-barreled shotgun was a variant of the standard shotgun. This shotgun had two parallel s, allowing for the firing of two individual shots. 

In 2268, a gangster affiliated with Boss Jojo Krako was armed with a double-barreled shotgun. ()

Later that year, in a simulation of the gunfight at the OK Corral in Tombstone, Arizona, Doc Holliday was armed with a double-barreled shotgun and used it when he fired at the Clanton gang. ()

In 2369, in the holographic program ,  and a Mexican bandito were armed with this weapon.  ()

In the holoprogram Paris 042, some of the Irish residents of Fair Haven wielded double-barreled shotguns for damaging the holodeck controls and holding Tom Paris and Harry Kim hostage. ()

In the holonovel Photons Be Free, a double-barreled shotgun was in the quarters of Captain , aboard the . ()

External links 
 
 Weapons used in The Original Series
 Weapons used in The Next Generation
 Weapons used in Voyager
Hand-held weapons
Paris 042
Projectile weapons