Hey all, been trying to get more information on the Mossberg 590A1 SPX ghost ring setup. I'm trying to find a part number to install a tritium dot but even Mossberg's own customer service couldn't help me. The 590A1 comes in like 4 different ghost ring setups so finding the correct part I need is proving to be rather difficult.. Mossberg can't even tell me if a fiber optic front sight post ships with it or what... :/