I love these threads to observe how people analyze these things.
There are no “prop” guns. They are real guns which sometimes have real ammo or blanks depending on the shoot. Real ammo is sometimes used in movies.
Stage prop crew should have quadruple checks on this stuff. Hard to believe this was an oversight but is certainly possible.
Well, it is a movie.
Let’s see the film. No Film? Murder.
Most prop guns are real guns. “Prop” means only that it is being used by an actor in a movie or play, short for “stage property”. It does not mean that the object being used as a prop, whether a gun or anything else, is necessarily an imitation of a real object.
I’m not trying to nitpick, but there are “prop guns.” They’re non firing replicas, often cast in rubber in molds made from real firearms. Fake weapons carried by background extras in war movies are prime examples. To your point, any firing weapon is the real deal, just loaded with blanks.
Thanks for keeping up!