Most violations of the myriad of Byzantine laws and regulations are prosecuted as felonies. Having an 11-round magazine in a state that forbids anything over 10 opens a person for prosecution. If that prosecution succeeds — a lifetime disenfranchisement AND a lifetime prohibition on gun ownership! If the prosecution does not succeed, at least the victim suffers a massive legal defense expense in money, time and stress. That is why the gun laws go into so much seemingly pointless trivia.