James Bond (Roger Moore) primarily uses his Walther PPK. Also carried by Emil Locque (Michael Gothard) on the beach before Bond kicks it out of his hand.
Smith & Wesson Model 39
Henchmen working for Gonzales, Columbo, and Kristatos all carry Smith & Wesson Model 39 pistols.
Smith & Wesson Model 19
One of Gonzeles' henchmen chasing down Bond and Melina carries a .357 Magnum Smith & Wesson Model 19.
Beretta M951
Several of Kristatos' thugs in Cortina fire Beretta M951 pistols at Bond.
Luger P08
Another of Columbo's henchmen uses the Luger P08. Kristatos' henchman Apostis (Jack Klaff) has one of these on the boat and when trying to knock Bond down from climbing up to St. Cyril's. Locque (Michael Gothard) also carries one of these, which Columbo picks up after Locque drops it when kicked by Bond during the warehouse raid. Kristatos' KGB hitman Erich Kriegler (John Wyman) also has a Luger, which he draws on St. Cyril's.
Tokgypt Type 58
Milos Columbo (Topol) carries a Hungarian Tokagypt Type 58 during the warehouse raid and assault on St. Cyril's. It is differentiated from the Tokarev TT-33, its base model, by its grip panels.
Browning Hi-Power
One of Columbo's henchmen fires a Browning Hi-Power at Locque's men during the warehouse raid.
Assault Rifles
SA vz. 58
A guard at Hector Gonzales' house carries the SA vz. 58.
The East German hitman Erich Kriegler (John Wyman) uses the Custom Bolt-Action Rifle from the previous James Bond film The Man with the Golden Gun during the Olympic ski match. The barrel gets bent after he crashes in the snow, angrily throwing this rifle at Bond.
Submachine Guns
Uzi
A warehouse guard during the shootout and General Gogol's (Walter Gotell) guard carries an Uzi at the finale when confronting Bond about the ATAC.
MAT 49
Some of Locque's warehouse guards carry and fire French MAT-49 SMGs. The gun is also used by Gonzales henchmen in Spain.
MP40
One of Locque's warehouse guards is carrying a German MP40 SMG.
Sterling L2A3
Two of Columbo's men carry Sterling SMGs during the assault on St. Cyril's.
Others
Barnett Commando Crossbow
Melina (Carole Bouquet) uses the Barnett Commando Crossbow as her primary weapon.
Prop Indicator Guns
Mounted on the Yamaha XT500 motorbikes during the snow chase. These are probably propane gas firing as they dont eject brass. Screenshots.
Grenades
Mk 2 hand grenade
Bond finds a box of Mk 2 hand grenades, using one to blow up a henchman outside the warehouse.