In the opening scene, one of drug dealers is armed with a Colt Official Police revolver. Later this revolver is carried by one of Havlock's henchmen in the scene in the jungle.
Unidentified Revolvers
Various characters carry unidentified revolvers. Some of them are seen too briefly to be identified.
Pistols
HAFDASA Ballester-Molina
DEA agent Shiro Tanaka (Shô Kosugi) carries a Ballester-Molina pistol in the opening scene and the storehouse shootout. It can be identified due to its uneven slide serrations (and due to the fact that the film was filmed in Argentina).
Browning Hi-Power
In the opening scene, Tanaka's Ballester-Molina switches to a Browning Hi-Power. A Hi-Power is also carried by Dick Coleman (Gerry Gibson) in the scene in the jungle.
Colt M1911A1
One of the guards in the storehouse is armed with a Colt M1911A1 pistol.
Mauser HSc
In the final scene, a treacherous DEA agent is armed with a Mauser HSc.
Unidentified Pistols
Various characters carry unidentified pistols.
Submachine Guns
Intratec TEC-9
Several of Havlock's henchmen are seen with Intratec TEC-9s.
Halcon Model 1949
Argentinean police officers are armed with Halcon Model 1949 submachine guns. Jorge (Martín Coria), leader of Havlock's henchmen, also carries one.
Shotguns
Remington 870
One of Havlock's henchmen is armed with a Remington 870 with a folding stock. It is also used in the final scene.
Bataan Modelo 71
One of Havlock's henchmen is armed with a shotgun with pistol grip and short barrel. It is Bataan Modelo 71, Argentinean model of Ithaca 37, manufactured by Industrias Marcati. It differs from the Ithaca in several details, including the shape of the support post between the tube and barrel.
Unidentified Shotgun
One of the guards in the storehouse is armed with a shotgun. It is seen very briefly.
Rifles
M16A1
One of the guards in the storehouse is armed with an M16A1. Several of drug cartel gunmen also use M16A1s in the final scene.
Colt CAR-15
In the final scene, several gunmen are seen with CAR-15 carbines. Shiro Tanaka (Shô Kosugi) also captures one and uses it.
FAL PARA
The FAL PARA, Argentinean model of FN FAL 50.63 Paratrooper, is seen in hands of one of drug cartel gunmen. It is also used in the final scene.
Ruger AC556K
In the final scene, one of drug cartel gunmen is armed with a Ruger AC556K with 30-round magazine. Shiro Tanaka (Shô Kosugi) disarms this man and takes his rifle.
Machine Guns
Ametralladora Tipo 60-20 MAG
The Ametralladora Tipo 60-20 MAG, Argentinean model of FN MAG, is mounted on drug cartel's Bell Iroquois helicopter.
M60E3
In the final scene, one of drug cartel gunmen is armed with an M60E3.
Others
Super Bazooka
The drug cartel gunmen fire a rocket launcher from the Bell Iroquois helicopter. The launcher looks similar to the M20A1/A1B1 "Super Bazooka" but differs in several details (note the different shape of grips at the business end). In any case firing the Bazooka from inside the helicopter is very dangerous for the crew.
Mk 2 hand grenades are used by drug cartel gunmen in the final scene. Shiro Tanaka (Shô Kosugi) also takes a grenade from the body of one of the enemies and uses it to blow up a jeep.
Flamethrower
One of drug cartel gunmen fires a flamethrower in the scene in the jungle. This weapon looks more like a real one than a film prop. Supposedly it is some model of M2 Flamethrower, maybe Argentinean produced.
Crossbow
Shiro Tanaka (Shô Kosugi) is armed with a Barnett crossbow when he enters the jungle. He uses it to kill some native tribesmen that attacking him.