A Colt Detective Special revolver is the standard sidearm of the HKPF Crime and Security Department officers in the film. Near the end of the film, Inspector Lau Kin-Ming (Andy Lau) is armed with this revolver before being disarmed by Chan Wing-Yan (Tony Leung Chiu Wai).
Smith & Wesson Model 10 revolvers are the standard sidearm of uniformed officers of the Hong Kong Police Force. The weapon is seen at the end of the film when Inspector Lau Kin-Ming (Andy Lau) leaves the elevator to meeting uniformed officers. It seems as though some officers carry the standard version of the Model 10 while others are equipped with the heavy barreled variant.
Chan Wing-Yan (Tony Leung Chiu Wai) carries a second generation Glock 17 in the final scene when he holds Inspector Lau Kin-Ming (Andy Lau) hostage on the rooftop. A well known goof to the audience is when Chan draws his Glock on Lau, it clearly has no magazine, but in later shots his Glock has a magazine. The Glock 17 was the one of the standard sidearms of HKPF officers in the criminal investigation units at that time the film was released.
Taurus PT92 pistols are used by Triad gangsters throughout the film, notably in the shootout immediately following Superintendent Wong Chi-Shing's (Anthony Wong Chau-Sang) murder. In reality, the Triads use Tokarev TT-33 pistols instead, rather than the Taurus.
Error creating thumbnail: File missingLee-Enfield No.1 Mk.III* - .303 British. This was the main battle rifle of British and Commonwealth forces during the First World War, introduced in 1907, it has seen action throughout the 20th century. It would make sense for it to be in Hong Kong, a former British Colony.Error creating thumbnail: File missingA young Lau Kin-Ming (Edison Chen) drills with the Lee-Enfield.Error creating thumbnail: File missingCloser view of the fore end of the Lee-Enfield. The "ears" that protect the rear tangent sights are visible, but not the sights themselves, which might suggest that this is just a non-firing drill rifle.