Seen during the fight in the gambling den, one of Montoyas' men fires a full auto pistol that strongly resembles the pistol used in Underworld: Evolution. Most likely a Beretta M93R with a custom extended front end, though this is an educated guess based on general shape and usage in other movies.
IMI Desert Eagle
Ruger KP94DC
Along with his Baby Eagle 9mm, Taha also keeps a Ruger KP94DC 9mm handgun ( a stainless steel model of the Ruger P94 fitted with a decocker) that 's fitted with a small laser pointer right in front of the trigger guard as one of his personal pistols. It's later taken by Leito and used for the rest of the film.
Sig Sauer P220 Pistols
Tomaso grabs a pair of Sig Pistols during a fight. The full size and large aperture of the barrel would indicate a big caliber like a .45 acp, so the assumption is that they are P220s.
SIG P228 pistol
Since the SIG pistols are supposedly stolen from the French National police, they should be SIG Pro SP 2022 or 2009 pistols, but they are probably Sig P228 pistols since they don't have the integral rail of the 2022 or the 2009 pistols used by the French.
Heckler & Koch Mk 23 Mod 0 Pistol
Both Gangster K2 (Tony D'Amario) and Heroine Lola (Dany Verissimo) use Heckler & Koch Mk 23 Mod 0 Pistols (.45 acp).
Glock 18
Captain Damien Tomaso (Cyril Raffaelli) uses a pair of Glock 18s fitted with 33 round magazines to destroy Gangster Montoya's prized automobile.
Glock 32
Elite French Police Captain Damien Tomaso (Cyril Raffaelli) uses a Glock 32 - chambered for .357 sig. Since Glocks all look alike the only reference to this caliber is a French language article which mentions the actor using a 357 pistol. Since the character never touches a revolver or a Desert Eagle, and that this is a French movie with a French Armorer, I am assuming that his Glock is a Model 32.
Glock 33
Though Tomasos' pistol is supposed to be a compact G32 in some of the scenes he seems to be firing a subcompact Glock. Since he is using the same ammunition (in the movie) it should be the Subcompact Glock 33.
Taurus PT92AFS
Used by the horrifying Carlos Montoya, who looks more like a character out of Sin City than a French underworld Boss, carries a Taurus PT92AFS, identifiable by the frame mounted safety/decocker.
Beretta Inox
Used by one of Taha's main henchmen, he has a large Stainless Compensator attached to the end.
Heckler & Koch USP
Early on, gangster K2 pulls two handguns out of a shopping bag filled with H&K USP pistols. Later a H&K USP is used by yet another of Taha's henchmen.
Smith & Wesson Performance Center Model 629
K2 holds two handguns, one of them a Smith & Wesson Performance Center Model 629 - .44 Mag.
Taurus Raging Bull
A French gang leader uses a Taurus Raging Bull to threaten Tomaso after he crashes his police van.
Jericho 941
Taha has a second pistol on his desk, which appears to be a Jericho 941 with a custom port cut into the slide.
Two of K2's henchmen is armed with a Remington 870 Express: one fitted with a nickel plated finish and a sawed off version fitteed with a muzzle break. One of Leito's guards has a sawn off version fitted with a taped foregrip and ribbed barrel.
Ithaca Model 37 Stakeout
Mossberg 500
Two leito's guards are armed with Mossberg 500: one a Persuader model and another one a 500AT model.
Savage-Springfield 67H Pump Shotgun
One of Montoya's thugs carries a Savage-Springfield 67H Pump Shotgun - 12 gauge.
The FAMAS-F1 was used by the French National Police who are guarding the barricade to District B13
FN P90
Used by French Security Police at the barricades.
SIG SG-550
One of Taha's bodyguards fires a full sized SIG SG 550 rifle with a red dot sight and a cheek pad on the buttstock and twin magazines clamped together "Jungle style".
SIG SG-551
Some of Taha's henchmen are armed with SIG SG 551 Assault Rifles. Some of them also have 40mm grenade launchers under their SIG SG551 rifles as well.
SIG SG-552
SIG SG-540
Norinco Type 56
One of Taha's Guards is armed with a full stock Norinco Type 56.
Galil ARM
Steyr AUG
Used by Taha's guard to the elevator.
Steyr AUG w/16" barrel
Used by a henchmen in the army of henchmen.
Heckler & Koch G3
Besides their FAMAS assault rifles, the French National Police also use Heckler & Koch G3 assault rifles fitted with wide "tropical" forearms.
FN FNC
Unknown Assault rifle
(moved discussion to the discussion page)
AKS-74U
Bulgarian AR-SF Short Assault Rifle
One of Taha's henchmen holds a AKS-74U style of weapon with a 5.45x39mm magazine with an underfolding stock. It is most likely the AR-SF rifle produced by Arsenal of Bulgaria since this SBR is available through mainstream channels of commerce in France. The rifle is available in 7.62x39mm and in 5.56x45mm NATO. The Bulgarian flash hider has been replaced with the classic Krinkov Flash hider/muzzle brake for the film.
Colt Model 733
Actually a "733 looking gun". Being a French film and the fact that French Armorers always do strange things with their guns, we see what looks like a Colt Model 733 Short barreled Assault rifle. However the barrel looks a little too long to be the 11" for the real 733 and too short to be the 14" for the 653, so it seems to be an intermediate length barrel (which means it's a custom barrel job from a real M16 carbine). It is seen briefly when Taha's men storm out of the building.
M16A2
Seen in the gangs weapons warehouse.
Ruger Mini-14
Some of Taha's henchmen can be seen holding standard full sized Ruger Mini 14 rifles in factory configuration.
Unknown Police Sniper Rifle
Since the only angle of this weapon is down the barrel it's hard to tell. It looks to be a .308 with a heavy barrel weight/muzzle brake mounted at the end. Possibly an FRF2.
Ruger AC556-SS
Seen in the gang headquarters scene, a gang member wields a stainless Ruger AC556 with a shortened barrel in a black synthetic stock.
M240Bs are used at gangland checkpoints and are also mounted on pickup trucks during a chase through the city. Being Europe these are most likely FN MAGs outfitted to look like M240B Machine guns (which have features that were requested by the U.S. Military).
Quad AAA Gun
Some sort of Quad Barreled Anti Aircraft Artillery gun is seen at the gang's headquarters.
Grenade Launchers
SIG GL 5140 grenade launcher
The standard 40mm Grenade Launchers for the SIG series of Assault rifle are the GL 5040/GL 5041 launchers, built by Swiss Arms. These are seen attached to SIG SG551s throughout the film.
Deftech 37mm Launcher
A French police officer carries a Deftech 37mm Tear Gas Launcher with top folding stock.