Revealing mistake: When the lawn mower the heroes send off as a diversion crashes you can see a wire pulling it. (01:01:30)

Tremors (1990)
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Directed by: Ron Underwood
Starring: Kevin Bacon, Fred Ward, Michael Gross, Finn Carter
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Question: Wouldn't Burt and his wife get in trouble for having all the weapons in their house? Even in later movies, there is no sign they got in trouble and Burt continued to have all these big weapons on hand.
Answer: In some parts of the US, especially in far-out desert towns, home arsenals like this are the norm. There is really no limit on how many firearms or ammo American's can own. Machine guns are illegal, but can be permitted. If you have any semi-auto firearm, it's not hard to convert to a machine gun. Albeit, the firearm will fail apart fairly quickly from the abuse.





Chosen answer: No, there's nothing illegal about any of the weapons they owned. Some of them may have required a Class 3 firearms license, but even this is not difficult (just expensive) for a law-abiding citizen to obtain.
Grumpy Scot