A number of Tal's guards carry M16A1 with 20-round magazines.
Norinco Type 56
Chinese clone of AK47 is carried by Tal's guards early in the movie but is never actually used.
FN FAL 50.00 7.62x51mm NATO
Used by Ryan during the shootout near the restaurant.
Armsel Protecta
One of Serrano's men uses (Armsel Protecta) a.k.a. DAO-12 "Street Sweeper" during the scene where Agent Frank Stewart fails to convince Jake (with the help of Ryan) to go with him and mobsters attempt to kill Jake right there.