An Assassin sent to track Frank carries a Springfield TRP with a CZ-75 Tactical Block/Bayonet mount on the front.
Beretta Cheetah with Custom barrel Extension
A killer with a Beretta Cheetah (perhaps a Model 85) with a long barrel extension on the front.
Heckler & Koch USP
Near the end of the film, one of Johnson's (Robert Knepper) Thugs can be seen with a Heckler & Koch USP handgun of unknown caliber.
That, doesn't look that much like a USP to me, or is it just the angle of the pic?-GunnutHk
Steyr M9-A1
SIG SG 551
The SIG SG 551 rifle upgraded with black railed furniture and fitted with ACOG scope, Surefire M900 weaponlight foregrip, and cheekpad is used by mercenaries hired by Leonid Vasilev (Jeroen Krabbé) to get his daughter back. They mistakenly fire on Frank, not knowing about the boobytrapped bracelets linked to the car. The rifle without attachments is also carried by Ice (Eriq Ebouaney), one of Johnson's henchmen.
Several of Johnson's henchmen use M4A1 carbines and Frank (Jason Statham) uses one near the end to take out multiple thugs on the train.
Heckler & Koch MP5A3
One of Johnson's Henchmen has a Heckler & Koch MP5A3 with a Navy Trigger group and a forearm modified to take rails.
Heckler & Koch UMP
One of the Ukranian Special Security forces that board the ship with the illegal cargo points a Heckler & Koch UMP with rails at the Captain when he tries to escape.
Arsenal AR
A Bulgarian Milled receiver Arsenal AR (their new milled receiver AK-47 model) is seen used by Ukrainian Special Security Forces when they board the cargo ship.