I recently picked up a Mossberg 500 for a nice price. It's coming with an ATI side folding stock. I have not fired it yet so will with hold my opinion until I do. However, I have not heard anything good about these stocks and being new to shotguns I was thinking of changing the stock. I have been looking at Knoxx stocks and Speedfeed stocks, but am not sure I want to drop $100 on a stock so soon. I have also thought about just swapping for the original stock or a Hogue model. Thoughts and Opinions.