James Bond (Sean Connery) is issued a .32 ACP Walther PPK as his standard sidearm at the beginning, forcing him to hand over his Beretta. In some shots on Crab Key, the larger Walther PP is seen in his hand (an error by the filmmakers). Felix Leiter (Jack Lord) also holds a PPK gun on Bond when they first meet.
Bond uses a FN Model 1910 with a suppressor to assassinate Professor Dent (Anthony Dawson). It is assumed that this was supposed to be a PPK, but the props department was unable to find a suppressor fitting the prop PPK.
The "three blind mice" assassins use suppressed M1911A1s to murder Strangways at the beginning. Professor Dent also has a suppressed M1911A1 in the scene in which he attempts to kill Bond. Bond identifies Dent's 1911 as a Smith & Wesson, only holding six bullets ("That's a Smith and Wesson, and you've had your six"), however all 1911s would have at least a seven-round magazine capacity. This line was taken directly from the novel, where Dent used a Smith & Wesson revolver. Strangely, Bond's PPK appears to be substituted for a 1911 while shooting at the Dragon Tank on Crab Key. After taking a few shots, the gun is back to his usual PPK.
The British Royal Navy sailors are seen holding Lee-Enfield No. 4 rifles at the end of the film when they picked up Bond and Honey after the destruction of Dr. No's facility.
Error creating thumbnail: File missingLee-Enfield No.4 Mk.I - .303 British. This was the main battle rifle of British and Commonwealth forces during World War Two, however, it was supplemented heavily with the older Lee Enfield No.1 MK.III. In service between 1941–PresentError creating thumbnail: File missingLeiter arrives with the Royal Navy
Bren gun
Dr. No's guards on Crab Key use a Bren gun when trying to find Bond, Honey, and Quarrel.
