I am selling my Panzer Arms AR Twelve. It is a semi-auto magazine-fed shotgun. I am including the 2 original 5-round magazines, 2 additional 10-round magazines, and a 20-round drum magazine. It has been shot only once and then put in the safe. I am selling to clear up space in the safe. I am asking $550 for everything. The Red Dot sight is not included.