Colt 1921AC Thompson

When Kevin McCallister (Macaulay Culkin) watches a gangster movie titled "Angels with Filthy Souls", he sees Johnny (Ralph Foody) use a Colt 1921AC Thompson loaded with a 50-round drum magazine to mow down another gangster nicknamed "Snakes".

Colt 1921AC Thompson .45 ACP with 50-round drum magazine

Johnny (Ralph Foody) uses a Colt 1921AC Thompson to mow down another gangster in "Angels with Filthy Souls".

Smith & Wesson Model 10 Revolver

Several Chicago police officers are seen carrying what appears to be a Smith & Wesson Model 10 revolver in their holsters. Harry Lyme (Joe Pesci) also carries a revolver when he's impersonating an officer.

Smith & Wesson Model 10 Revolver - .38 Special

Harry Lyme (Joe Pesci) carries a revolver while impersonating an officer.

A Chicago PD officer has a holstered revolver when he reacts to Kevin shoplifting a toothbrush.

Pump Action BB Gun

Kevin is also seen using his brother Buzz's Pump Action BB Gun throughout the film. He first uses it to shoot at action figures arranged as part of a makeshift shooting gallery he sets up, then later on he turns it on the Wet Bandits when they're trying to break into his house.