Jurassic Park (1993)
Jurassic Park is the 1993 feature film adaptation of the Michael Crichton bestseller of the same name. Directed by Steven Spielberg, the film is set in a state-of-the-art amusement park where dinosaurs have been brought back to life via genetic engineering. After a computer malfunction, the dinosaurs become a threat to those remaining on the island. The film was a huge success, surpassing Spielberg's own E.T. to become the highest grossing film of all time until 1997's Titanic. The film would subsequently be followed by several sequels, including 1997's The Lost World: Jurassic Park, 2001's Jurassic Park III, 2015's Jurassic World and 2018's Jurassic World: Fallen Kingdom.
The following weapons were used in the film Jurassic Park (1993):
Franchi SPAS-12s are used by Robert Muldoon (Bob Peck) and Dr. Alan Grant (Sam Neill) over the course of the movie, also seen in the hands of several InGen workers in the introduction and in the gun lockers. It is last seen lying discarded on the computer room floor after jamming due to a stovepipe malfunction when Grant used it to try to fend off an attacking Velociraptor.
The M16A2 is carried by several InGen security guards in the beginning of the film. Later, when the group first visits the Raptor holding pen, guards are seen with M16A2s slung on their backs, and more of the rifles are later visible in the gun lockers in the emergency bunker. Most of the M16A2s carried by the workers can be seen fitted with weapon lights mounted on the barrels ahead of the front sights.
Heckler & Koch HK91A2
A couple of Heckler & Koch HK91A2s can be seen briefly inside the gun locker, from which Muldoon grabs a SPAS-12.
Some of the InGen workers are also seen with 'slab-side' M16 Rifles, or possible AR-15/SP1s. Then again, they could be simple rubber props modeled after said rifles. They are fitted with A2-style handguards to pass for an M16A2.
Cattle Prod (Mares Spear Gun)
InGen security guards overseeing a Velociraptor being transferred to the holding pen are seen with cattle prods. The film-used props in actuality were Mares Spear Guns with added bits and bobs on them.