I believe you are now in possesion of a prohibited weapon sawded of shotgun is illegal
I can't remember can you do the cutting or does a gun smith? Not judging....Asking. I have a single 12 Gauge I want to make a little shorter but don't want to have to pay a smith to do it.
chop 'er down if you feel comfortable doing it. dont need a smith, just measure twice, and make sure you stay legal.
did you have to shorten the stock bolt?
Now that you've proudly shown the world what you've done, what would you do differently?
(I have painful memories of pistol grip shotguns. Given the choice, you might have been wiser to leave the full stock ...)