Hi I am new to the site and purchased my 1st Mossberg ever! Have owned many guns but never a Mossberg picked up a 590A1 at gun show last weekend. Went in to buy a 870 tactical and walked out with the 590A1. I got the Blackwater with ghost rings just because I like the features it had have shot it some but need to get out and dial in the sights seems to be shooting low. Happy with gun and hope to learn a lot from you guys!