The following firearms can be seen in the film Ishtar:
Handguns
M1911 pistol
Original Colt M1911 (dated 1913) - .45 ACP
Walther P-38 pistol
Beretta 92F pistol
Beretta 92F (Early Model) - 9x19mm
Submachine guns
Ingram MAC-10
Ingram MAC-10 with suppressor - .45 ACP
IMI Uzi
Heckler & Koch MP5A2 submachine gun
Heckler & Koch MP5A2 with early "slimline" handguard - 9x19mm
Rifles
AK-47 assault rifle
Various characters in the film had used a AK-47 assault rifle.
AK-47 (Type III) - 7.62x39mm
Chuck Clarke (Dustin Hoffman) with AK-47 in his hand offered a weapons of smugglers.
Agent of CIA shoots from a helicopter at the two men in the desert.
Lyle Rogers (Warren Beatty) reciprocates fire on a man in helicopter.
AIM/AIMS-74 assault rifle
In the box on the back of the truck is the AIM/AIMS-74 assault rifle.
M1 Carbine
Chuck Clarke (Dustin Hofman) armed with an M1 Carbine is ready to repel an attack from any side.
Auto Ordnance M1 Carbine (Modern production) - .30 Carbine
Unidentified rifle
The man working for the CIA equipped with a unidentified rifle ...
... got ordered to shooting the both musicians from a small height.
Machine guns
Goryunov SG-43 Machine Gun
Goryunov SG-43 Machine Gun On 'Sokolov' mount with shield - 7.62x54mm R
FN MAG
FN MAG 58 - 7.62x51mm NATO
Others
Hawk MM1 grenade launcher
MM1 grenade launcher - 40mm
FIM-43 Redeye