Detective Lieutenant John McClane's (Bruce Willis) main sidearm throughout the film is a SIG-Sauer P220R (nowadays, this model is simply known as the standard P220). During the confrontation with Mai Linh (Maggie Q) in the power plant, she takes the P220 and holds it on Matt Farrel (Justin Long). After McClane hits her with an SUV, she loses the gun and it is never seen again; McClane later takes a Beretta Px4 Storm from Russo (Yorgo Constantine), which becomes his weapon for the rest of the movie.
Error creating thumbnail: File missingSIG-Sauer P220R - .45 ACP. This is the screen used gun in the film and was carried and fired by Bruce Willis.Error creating thumbnail: File missingDetective Lt. John McClane shows Matt Farrel his SIG-Sauer P220R in his shoulder holster when he accuses him of being fake.Error creating thumbnail: File missingMcClane shoots a fire extinguisher with his SIG-Sauer P220R in the hallway of Farrel's apartment building and succeeds in launching a terrorist out of the window with the blast. It should be noted this is Hollywood fiction.Error creating thumbnail: File missingMcClane drops an empty magazine out of his SIG-Sauer P220R before reloading. For some reason the magazines stick and require vigorous shaking to drop fully.Error creating thumbnail: File missingMcClane's SIG-Sauer P220R is knocked out of reach when a terrorist bumps the door open.Error creating thumbnail: File missingA security guard at the power plant who is shot by a terrorist disguised as an FBI agent is seen holding a SIG-Sauer P220R.Error creating thumbnail: File missingMai holds McClane's SIG-Sauer P220R on Farrel before being run over by McClane in an SUV.
Beretta Px4 Storm
The terrorist Russo (Yorgo Constantine) in the film is seen carrying a Beretta Px4 Storm in several scenes, both with and without a sound suppressor. After killing him, John McClane (Bruce Willis) takes it and uses it in the second half of the film. During the final confrontation with Thomas Gabriel (Timothy Olyphant), McClane drops the pistol, and it is then used by Matt Farrell (Justin Long) to kill Emerson (Edoardo Costa) with.
One of the terrorists is seen using a Beretta 92FS to gun down the hackers in the semi-truck, including Casper (Andrew Friedman). An interesting note, the particular Beretta used in the film was the same prop gun used by Bruce Willis in the second and third Die Hard films. Call it a "cameo" role, if you will.
Many of the terrorists are seen using Heckler & Koch UMP-45s throughout the film. They are all fitted with C-More red-dot sights, Surefire M900A vertical grip/flashlight combinations, and flash hiders. McClane (Bruce Willis) commandeers one after the shootout at Matt Farrell's (Justin Long) apartment, but never uses it.
M4A1 Carbines are used by the FBI agents and security guards at the power plant, being fitted with flip-up rear sights, M68 Aimpoint scopes, AN/PEQ-2 lasers, and Surefire M900 weaponlight foregrips.
Thomas Gabriel (Timothy Olyphant) uses a stainless steel Jericho 941 as his sidearm, which he holds on Lucy McClane (Mary Elizabeth Winstead) in the final confrontation and uses to shoot Matthew Farrell (Justin Long) in the leg. Later, he sticks the muzzle of the Jericho into John McClane's (Bruce Willis) gunshot wound, so McClane simply forces him to pull the trigger, causing him to shoot through his pre-existing wound and into Gabriel.
Many of the police officers and security guards throughout the movie are armed with 3rd Generation Glock 17 pistols. McClane briefly uses one to kill a terrorist disguised as a guard at the power plant.
The gun used by the terrorist snipers, first in the shootout at Matt Farell(Justin Long)'s apartment, and later during chase scene in Washington D.C., is the Mark 12 Mod 0 SPR (Special Purpose Rifle). This is a little-known AR15 derivative developed by Crane and is used by U.S. SOCOM personnel in Iraq, Afghanistan, and other hot-spots globally. The Mod 0 uses a PRI carbon fiber handguard where the Mod 1 uses either a Knight Armament or LaRue Tactical free-floating aluminum handguard. The weapons in the movie are fitted with suppressors, brass catchers, Surefire M900 weaponlight foregrips, as well as AN/PEQ-2 IR designators and are fired on automatic (which suggests that the terrorists simply took the upper receivers/barrels and slapped them on full-auto lowers).
During the scene at the power plant, McClane runs into a terrorist who is armed with a Heckler & Koch USP Tactical fitted with a KAC suppressor. McClane fires his SIG P220R and the terrorist fires the USP Tactical simultaneously over each other's heads before knocking each other's guns away. McClane eventually gets a Glock 17 out of the terrorist's holster and uses it to kill him.
Another gun used by Thomas Gabriel (Timothy Olyphant) is the Heckler & Koch MP7A1 using one to kill some of his associates, and later Gabriel's henchman Emerson (Edoardo Costa) uses a Heckler & Koch MP7A1 to wound McClane moments before the rescue of his daughter Lucy (Mary Elizabeth Winstead). Later, Lucy knocks the MP7 out of Emerson's hands and tries to kick it to McClane, but Gabriel intercepts the weapon before it reaches McClane.
Emerson's (Edoardo Costa's) sidearm is a Heckler & Koch USP Compact which Lucy grabs after she knocks the MP7A1 out of his hands and shoots him in the foot with it, but he restrains her and holds it on her.
