Death Wish is the 1974 cult classic thriller based on the novel by Brian Garfield starring Charles Bronson as Paul Kersey, a quiet architect who becomes a vigilante, when his wife killed and daughter is raped by three muggers (including one played by Jeff Goldblum in his film debut). Bronson would go on to star in four more "Death Wish" films. It's also of interest that Garfield's novel served as the basis for the 2007 Kevin Bacon film Death Sentence.
The following weapons were used in the film Death Wish:
Paul Kersey (Charles Bronson) uses a .32 caliber nickel plated Colt Police Positive revolver with a 4-inch barrel, given to him as a present by Ames Jainchill (Stuart Margolin) during his vigilante missions. He kills ten street muggers with it.
1842 Percussion Revolver
During his vacation in Tucson, Paul is seen target shooting with a percussion revolver, to which is briefly described by Ames Jainchill (Stuart Margolin) as a 'percussion pistol, 1842.'
Colt Single Action Army Revolver
Paul opts to try the Colt Single Action Army revolver, after impressing Jainchill by shooting the Percussion pistol dead center at the range. It's described by Jainchill as revolver used by bandit Candy Diever in 1890. They're also used by stuntmen performing in a Wild West live action show.
Colt 1911
A mugger is seen wielding a standard Colt 1911 pistol upon Paul's vigilante mission. Unfortunately for Paul, the mugger wounds him in the leg before he can take him out.
Snub nose Revolver
During his first night of vigilantism, Paul encounters a drug addict and mugger Thomas Leroy Martin who points an unknown snubnose revolver behind him with a warning to give him the money or 'I'll bust you up'.
Smith & Wesson Model 10
12 Gauge sawed-off double barrelled shotgun
Used by actor, playing deputy in the western show.
Unknown shotgun
Another unknown shotgun used by one of the actors, who plays bandit.
Depicted revolvers
We can also see revolver on Newsweek cover in the street commercial and drawn revolver (without any real prototype, i think).