So I am thinking of a 2nd Mossberg. I've already got a 20" barrel 590a1. I need a shorter one to fit in a smaller safe. I'm thinking the "new" Thunder Ranch model I want a Mossberg so I have parts interchangeability between my 2 shotties, I need short length but still have a shoulder stock, and the biggest need is I want to have a rail on the forend for a flashlight. Aftermarket stuff is an extra $100 or more. BUT I CAN'T FIND ONE!!!!! Where has this shotgun disappeared to? It was available last Fall.