A co-worker of mine wants me to do some work to his Mossberg 500 shotgun. One of the things he wants done is a top folding stock put on it. I have been pricing out the stock for him and when I went to the Numrichs website it said shipping to NY was prohibited. I thought you could do whatever to a pump as long as the barrel was at least 18 inches and the overall length was 26 1/2? Numrichs will ship a pistol grip for the shotgun to NYS.....isn't the top folding stock kinda the same thing? I don't remember seeing any restrictions from any of the other sites. I told him I would find out and if we can't get the stock I will look into other options. Thanks for any help you can give me with this.