In the opening scene, James Bond (Pierce Brosnan) wields a heavily modified Armalite AR-18. The rifle used in the film was given many modifications; the barrel was shortened, the handguards and flash hider removed, and the side-folding stock replaced with a top-folding stock. Only the receiver was left unchanged. The rubber stunt version of this gun is now on sale at Propstore, confirming at last what this weapon is (it has been the subject of much debate here on IMFDB and other gun message boards).
After the HMS Devonshire is sunk in the beginning of the film, the survivors are approached by the stealth boat that discreetly tore a hole in it with a remote-controlled sea drill. As they plead for help, Stamper (Gotz Otto) emerges with an M60E3 Machine Gun and fires it into the crowd of survivors, killing all of them.
For the majority of the film, James Bond (Pierce Brosnan) uses a Walther PPK as his long-standing personal sidearm. Most notably seen in the Tomorrow printing factory shootout and with its equally iconic suppressor attached when Paris Carver (Teri Hatcher) shows up to confront Bond, Tomorrow Never Dies represents the last time until Quantum of Solace that the PPK would show up in a Bond film.
Many of Carver's henchmen, including Stamper (Gotz Otto) carry Heckler & Koch MP5A3 submachine guns. In the final gunfight on Carver's ship, Wai Lin (Michelle Yeoh) dual-wields two.
Many of Carver's henchmen carry Heckler & Koch MP5K submachine guns. Stamper (Gotz Otto) has one briefly during the shootout with Bond on Carver's ship.
Dr. Kaufman (Vincent Schiavelli) uses a Heckler & Koch P7 to attempt to kill Bond. Kaufman is subsequently executed with it by Bond. It's distinguished from the P7M8 because it lacks the M8's plastic heat shield above the trigger, and has a flush firing pin bushing.
Some of Carver's henchmen carry Heckler & Koch MP5K-PDW submachine guns. Bond (Pierce Brosnan) comandeers one in the final scene, using it akimbo with his P99.
In the Atlantic Hotel parking garage, Many of Carver's goons use M4A1 with M203 Grenade Launcher rifles to destroy Bond BMW (Some of them with Beta-C drum barrels). During the climax of the movie, Stamper (Gotz Otto) attempts to kill James Bond with a M4A1 assault rifle that has a M203 40mm grenade launcher attached underneath. Initially believing himself to be successful, he then locates Wai Lin and holds her at gunpoint with the same gun.
In Shanghai, when Bond and Wai Lin make their escape from Elliot Carver's penthouse room, Bond procures a Calico M960 from a disabled security guard, using the machine pistol to shoot out a nearby window. The pair then jump, avoiding gunfire from more of Carver's guards, some of whom are armed with M950s.
This is the Chinese version of the Russian Makarov PM used by the the thugs who attack Wai Lin at her safe house. Bond later points it out after he incapacitates a thug with it.
In Shanghai, Bond picks out a Walther P99 from Wai Lin's (Michelle Yeoh) hidden armory. He then uses the gun, with a suppressor attached, through a great deal of the movie's climax aboard the Stealth ship, losing it only when he runs dry during an intense period of gunfire. This is also the gun featured on many posters for the film.
