Well you could just sell it and buy an 18'' 870 police magnum with wilson ghost ring sights and a pistol grip speedfeed stock. Mossberg also makes a really good ghost ring set up too for the 590A1. I use to own a 18.5 " 590A1 with ghost rings, it was a great weapon. But I actually like the 20" better for the added ammo capacity.
But really it would probably cost more than its worth to convert it. And a ghost ring will work much better for you eyes IMHO than the bead sight.
The rem police models come in true 18" instead of the 18.5" and are much lighter and don't rattle like a mossberg. And the remington 870 MCS is the ultimate pump if youre willing to pay for the paperwork to buy one.
U.S. Army 88-97 68W2W1
Operation Just Cause
Operation Desert Shield/Storm
Operation Restore Hope/ Gothic Serpent
Last edited by fragout; 01-20-2010 at 16:18..