The following weapons were used in the video game Wet:
Fictional-based dual revolvers are Rubi Malone's (voiced by Eliza Dushku) main sidearms and are only used by herself. The lower screenshot reveals that it uses .357 magnum rounds, and the revolver itself seems to be a crossover of a Mateba Autorevolver and a hammerless snubnose.. also note the strangely open design, the fact that they eject bullets to the side, and finally, they´re called "Pistols" in the game.
Skorpion SA Vz 61
It is mostly used by the opponents, the Skorpion SA Vz 61 (with a over-sized magazine) is very powerful and fast.
Taurus Automatic Pistol
It is the main sidearm of a drugs dealer and his bodyguards. Drugs Dealer used this weapon to kill a mobster during a meeting.
GE M134 Mini-Gun
The player can't carry it with her. It is very useful and specially when Rubi uses it to kill the bad guys. The Boss character Rat Boy also uses a mounted one trying to kill Rubi, then uses a handheld one with the typical Terminator 2 setup in the boss fight against him. As usual, there`s no source of electric juice OR any visible ammo source for it to be seen, although the mounted one does have a belt box attached. When his hand gets shot by Rubi, he´s seen holding it with one hand until he dies. The handheld version as well as the mounted one both have a very unrealistically slow rate of fire, similar to the one in T2, and need to spin up for about two seconds before they fire.
Winchester M1887 Shotgun (Sawed Off)
Used by the thugs. Rubi can pick it up from them and use it for her against the opponents. Despite the obvious references from the Terminator featured gun, this one has the same custom grips that her revolvers have, a custom lever to use it with the grip and a ventilated barrel. Its also significantly shorter than the T2 Rosebox shotgun, with a muzzle diameter of maybe .12 gauge at best. Despite the fact that a single cocking sound is heard after the gunfire, the iconic flip-cock isn't present in the game, making it look like a semi-auto shotgun.
Some guards are seen with shotgun which are really unidentified. The last picture looks like a Benelli M3 with a SPAS-12 handguard and a shell-holder on the side.
Not an SAF, its a SIG 552. You see its full size in the cutscene, and you can get a closer look in the Boneyard.