World Trade Center
The following weapons were used in the film World Trade Center:
Smith & Wesson 5946
The Smith & Wesson 5946 is the standard firearm carried by nearly all officers of the New York Port Authority Police Department in the film including Sgt. John McLoughlin (Nicolas Cage), Officer Will Jimeno (Michael Peña), Officer Dominick Pezzulo (Jay Hernandez), Officer Giraldi (Danny Nucci), and Officer Colovito (Nicholas Turturro). Within the rubble, Officer Pezzulo is seen firing his sidearm. Pezzulo's firearm also is notably seen discharging by itself (in the actual incident, it's been speculated that it went off due to the super hot gases melting the cartridge inside the handgun).
The Glock 19 is seen in the holster of an NYPD officer.
Several members of the National Guard are armed with M16A2 rifles at various checkpoints.