The Beretta 92FS is the main sidearm of Colonel Faris Al-Ghazi (Ashraf Barhom). Also used by the terrorists disguised as Saudi police officers at the beginning of the film.
Heckler & Koch USP
The Heckler & Koch USP is used by Sergeant Haytham (Ali Suliman) throughout the film. A terrorist standing in the middle of a crowd also uses one and gets shot by Agent Grant Sykes (Chris Cooper).
Tokarev TT-33
The grandson of Abu Hamza fires a Tokarev TT-33 pistol at Colonel Faris Al-Ghazi during the apartment shootout.
Submachine Guns
Heckler & Koch MP5K
The main weapon of FBI Special Agent Janet Mayes (Jennifer Garner) is the Heckler & Koch MP5K. She uses it to dispatch several terrorists who kidnapped Adam Leavitt (Jason Bateman) during the apartment shootout. The MP5K is also carried by the Prince's bodyguards, as well as Colonel Faris Al-Ghazi (Ashraf Barhom) when he escorts the FBI team from the airport. Saudi Special Security Forces also carry this gun during their assault on the terrorist hideout. This is a standard MP5K fitted with a PDW stock.
Heckler & Koch MP5A2
Heckler & Koch MP5A2 submachine guns are used by the Saudi Special Security Forces during their raid on a suspected terrorist hideout. MP5A2s are also seen in the hands of Saudi police officers guarding the FBI team and one is held by a Saudi National Guardsmen soldier as he guards the Prince. Also seen in the hands of the terrorists posing as Saudi police officers in the freeway attack.
Shotguns
Serbu Super Shorty
Colonel Faris Al-Ghazi (Ashraf Barhom) uses a Serbu Super Shorty shotgun while clearing a room in the terrorist controlled apartment.
Heckler & Koch HK91A2 rifles are the main weapons of FBI Special Agents Ronald Fleury (Jamie Foxx) and Grant Sykes (Chris Cooper). The HK91s are converted to resemble the Heckler & Koch G3SG/1 and is therefore fitted with a folding bipod, and converted to full-auto. Fleury uses it mainly during the freeway attack. Sykes uses it during the freeway attack as well as the shootout at the terrorists' neighbourhood.
M4A1 Carbine
M4A1 Carbines are carried by the Saudi Police Forces and National Guardsmen throughout the film. The disguised terrorists who attack the Western housing compound use one to shoot at the contractors' houses. Colonel Faris Al-Ghazi (Ashraf Barhom) and Sergeant Haytham (Ali Suliman) also use M4A1 Carbines during the shootout at the terrorists' apartment. Interestingly, Haytham's carbine lacks a carrying handle or backup sights.
AKM
A number of AKM rifles in many variants are used by several terrorists as they attack the FBI team during the climactic shootout.
AKMS
Several terrorists use AKMS rifles in the climactic shootout. Fleury picks up one with a RAS and vertical grip, and AK74-style muzzle brake and uses it for the rest of the shootout.
AKMSU
AKMSU rifles are used by the terrorists as they engage members of the Saudi Special Security Forces. Also used in the climactic shootout.
SIG SG 552
Several members of the Saudi Police Forces who accompany the FBI team on their investigation are equipped with SIG SG 552 rifles.
M16A2
Several members of the Saudi Police Forces are seen carrying M16A2 rifles.
FN FAL
An FN FAL rifle is briefly seen carried by one of Saudi police officers.
SVD Dragunov
An SVD Dragunov sniper rifle is seen among the stash of weapons found in the terrorist hideout.
Machine Guns
M240B
Several M240B machine guns can be seen mounted on Saudi Humvees throughout the film.
Browning M2HB
Browning M2HBs are seen mounted on Saudi Humvees and an M1A2 Abrams tank. One is used to stop a fistfight between Colonel Al-Ghazi and a Saudi National Guardsmen commander.
Dillon Aero M134 Minigun
A Dillon Aero M134 Minigun is seen mounted on the helicopter hovering over the Western compound bomb site.
M230 Chain Gun
A Saudi AH-64 Apache helicopter mounted with a 30mm M230 Chain Gun provides air cover for the FBI team as they go to visit the Saudi Prince.
Others
Mecar M72 Hand Grenade
During the final shootout, the protagonists' vehicle is showered with several Mecar M72 hand grenades by the terrorists on the rooftops.
Type 69 RPG
Type 69 RPGs fitted with Russian PGO-7 scopes are used by the terrorists during the climactic shootout, destroying several civilian cars and a part of an apartment building.
RPG-7
In addition to the Chinese Type 69 clone, there is at least one appearance of a genuine RPG-7 in the film; visible leaning against a wall in the terrorist hideout.