Anybody know any info about this I can't seem to find much on it. Recently purchased a Mossberg 500 special purpose 12 gauge, box says Persuader... Model number 50409...I was looking at upgrades and one site had a forend that I wanted however it says not compatible with synthetic forends due to the action bars and it said that the synthetic forends could not be replaced is that true? if it is I'm going to be upset because I really want to upgrade this thing and make it all tactical