Those are actually real guns, available at the time. They are just outfitting them with really bad laser site choices.

https://www.imfdb.org/wiki/Predator_2

Det. Danny Archuleta (Rubén Blades) at the top carries a Smith & Wesson 4506 fitted with a Laser Products model 302 weaponlight.

Detective Leona Cantrell (Maria Conchita Alonso) Cantrell with her SIG-Sauer P226. The early LASERAIM sight appears to have been designed for a longer pistol.

Only 3 guns in the entire movie have laser sites on them, that look inappropriate. As laser sites were very popular and trending at the time.

Those are actually real guns, available at the time. They are just outfitting them with really bad laser site choices.

https://www.imfdb.org/wiki/Predator_2

Det. Danny Archuleta (Rubén Blades) at the top carries a Smith & Wesson 4506 fitted with a Laser Products model 302 weaponlight.

Detective Leona Cantrell (Maria Conchita Alonso) Cantrell with her SIG-Sauer P226. The early LASERAIM sight appears to have been designed for a longer pistol.

Only 3 guns in the entire movie have laser sites on them, that look inappropriate. As laser sites were very popular that decade.