The following weapons were used in the movie Home Alone 3:
Glock 17
Peter Beaupre (Olek Krupa), Burton Jernigan (Lenny Von Dohlen), and Earl Unger (David Thornton) were all seen armed with 2nd Generation Glock 17s. Jurnigan's and Unger's were fitted with suppressors. There were two sound goofs involving these pistols, the first is when Beaupre falls through the hole on the back porch, he fires the weapon, which makes sounds like it's silenced, but it isn't. Another goof is when Unger falls down the basement stairs, and after he falls on his butt, he fires his Glock, which is silenced, but makes a loud sound.
As part of his traps, Alex Pruitt (Alex D. Linz), converts a bubble gun into a look aline gun. This is clearly based on a Glock 17 which coincidentally is the same gun used by the robbers. Later there is also a dart gun that has been painted black and again a Glock 17 look alike. Since Glock does not allow air-soft replicas of their guns, these are most likely real guns that were painted and modified.
When Beaupre Olek Krupa enters the house after cutting thru the door, he is armed with an all black Ithaca 37 "Stakeout" . After being punched in the crotch by one of Alex's traps, he falls on his butt, making it go off.
