Nick Gant (Chris Evans) keeps a pair of SIG-Sauer P228 pistols in his dresser drawer for protection. Cassie (Dakota Fanning) can be see using one of Nick's P228s, but doesn't fire it. Near the end of the film, Cassie retrieves a pair of these pistols from Nick's apartment. In various scenes of the movie, Nick uses his mind to levitate ("move") his P228, and often fires the pistol using this method. In all of these scenes, the P228 is replaced by a CGI render that does not match the real gun very well (most notably, it has brown grips with a wood texture, unlike the real P228).
Glock 17
2nd and 3rd Generation Glock 17s are seen throughout the movie, in the hands of both Division Agents and Chinese Pop family henchmen. After she is detained, Kira (Camilla Belle) takes Agent Mack's (Corey Stoll) Glock 17 off of him and fires it at Nick and Cassie when they meet her at the Pier. Later, when he confronts Agent Carver (Djimon Hounsou) in the restaurant, Nick uses this Glock, along with his P228 (although it's supposed to be the same one that Kira took from Agent Mack, it's clearly a 2nd Generation Glock 17, even though Kira was seen using a 3rd Gen model). During the shootout at the construction site, Nick takes another 2nd Generation Glock off one of the Pop's henchmen and uses it during the shootout.
In the scenes where the Glock 17 is "moved" by Nick and later by Agent Budarin (Neil Jackson), the gun is replaced by a CGI render which is not a very close match to the real gun (it has an accessory rail under the barrel, like a 3rd Gen Glock, but also has no finger grooves or thumb reliefs, like a 2nd Gen Glock).
Glock 19
The blond Division agent who helps arrest Nick's father in the beginning is armed with a Glock 19.
Heckler & Koch MP5A3
The Division S.W.A.T. unit that arrests Nick's father in the beginning of the film uses Heckler & Koch MP5A3 submachine guns with Surefire foreends fitted with lime green laser sights, and ACOG sights. Later in the film, at least one of the Pop family's henchmen also carries an MP5A3 in this configuration (minus the ACOG).
Davis P32/P380
The Pop family watcher (Xiaolu Li) carries a nickel-plated Davis either P32 or P380 pocket pistol. The P32 is chambered in .32 ACP while the P380 is chambered in .380, but are otherwise identical.
Beretta 92FS Inox
When Hook Waters (Cliff Curtis) goes to retrieve the package, a member of the Pop family can be seen threatening him with a Beretta 92FS Inox, but doesn't fire it. During the Construction site shootout, Nick takes another Beretta Inox off of a dead henchman (along with a Glock 17), but doesn't use it.
During the shootout at the construction site, several full-size IMI Uzi submachine guns are used by the Pop family's henchmen. Kira grabs a dropped Uzi at one point in the shootout, but she never fires the weapon at any point in the movie (even though the trailer showed her firing it).
Micro Uzi
Some of the Pop family's henchmen can be seen using Micro Uzis at the end of the movie, most fitted with the green laser sights.
Heckler & Koch USP
One of the Pop family bleeders can be seen loading a full-size Heckler & Koch USP before the final shootout. It's hard to tell, but it looks like at least one of the henchmen also carries a USP.
Skorpion SA Vz 61
At least one of the Pop henchmen can be seen with a Skorpion SA Vz 61 machine pistol (with the top-folding stock removed) at the end of the movie. Kira then "pushes" him so he puts the Skorpion down, and then he gets drilled in the head by Agent Carver.
Beretta 92FS
Several of the Pop family's henchmen carry Beretta 92FS pistols.
CZ 75
At least one of the Pop henchmen uses what appears to be a CZ 75.