When crime kingpin Lou Janero's (Anthony Charnota) henchmen open fire at Insp. Callahan (Clint Eastwood) during their attempts to kill him at a freeway exit, some of them are armed with IMI Uzi submachine guns. Later when Callahan is with Samantha Walker (Patricia Clarkson) in the elevator, two more henchmen open fire on them with Uzis.
A Browning Hi-Power is used by the lead robber in the Chinese Restaurant. One is also seen in the shoulder holster of one of the bodyguards hired to protect Insp. Callahan (Clint Eastwood).
Remington 870
One of the robbers in the Chinese Restaurant is seen armed with a pistol gripped Remington 870 shotgun.
Colt Trooper
A Colt Trooper is seen in a police officer's holster at the Police Department. One of the robbers in the Chinese Restaurant is also seen using one.
A police officer at the scene of one of "Ed Butler's" crimes is seen with a Smith & Wesson Model 28 in his holster.
Harpoon
One of the props on the set of Peter Swan's (Liam Neeson) new film is a high-powered Harpoon gun, which for unknown reasons actually fires harpoons. On real film sets, deadly weapons are typically avoided for obvious reasons. At the end of the film, Insp. Callahan (Clint Eastwood) uses the Harpoon gun to kill Harlan Rook (David Hunt), after he runs out of bullets.