The following weapons were used in the film Winners & Sinners:
CID 07, aka "Cop #7086" (Jackie Chan) carries what appears to be a Colt Python snub nose as his sidearm in the film. He is seen pulling it from his ankle holster during the chase.
Colt Python Snub Nose with 2.5" barrel - .357 Magnum
Bruni Olympic 6
The small compact revolver used in a robbery as well as in a standoff appears to be a blank-firing Bruni Olympic 6 revolver.
Bruni Olympic 6 with composite grip - .22 blanks
A robber pulls his revolver.
Colt Detective Special
CID 07, aka "Cop #7086" (Jackie Chan) also uses what appears to be a 3rd Generation Colt Detective Special as his sidearm in the film.
Colt Detective Special 3rd Gen - .38 Special
Cop #7086 holds his revolver.
Ingram MAC-10s with suppressors are seen in the hands of officers of the Hong Kong Police Force.
MAC-10 submachine gun with Sionics Two-Stage Sound Suppressor - .45 ACP
with suppressors are seen in the hands of officers of the Hong Kong Police Force.
Some officers of the Royal Hong Kong Police are armed with M16A1 rifles.
Colt M16A1 with 30 round magazine - 5.56x45mm
Some RHKP officers are armed with M16A1