An interesting ruling out of Cali:
The California Supreme Court ruled Monday that a person can't be convicted of the crime of possessing a sawed-off rifle unless prosecutors can prove that the defendant knew the weapon was unusually short.
The court upheld the conviction of Sean King of San Francisco for possessing a short-barreled rifle in 2001.
Police found the loaded rifle in the drawer of a workbench in the garage of a house shared by King, his mother and his brother.
The stock of the rifle had been sawed off so that the weapon measured 24 and 1/8 inches. The state's Dangerous Weapons Control Law makes it a crime to possess a rifle less than 26 inches long.
Not sure how similar Cali's laws are to the federal laws (not sure what the overall length is for federal rules but think 26 sounds right) but it seems odd.