Most I have no idea as to what they fit. Looked up the 2 12 gauge mags (surface rust only, solid) and appears to fit the 195& 200 series Mossberg. The smaller mags left to right 22lr 22short and far right holds a 32 auto, the big mag holds something like a 30-06. The 16" barrel is a smooth bore and marked 45acp. I can't identify any further. Will sell all for $100 $85$75 shipped I might be off in price but wanted to throw it out there, I know the 12 ga mags can be a bit costly.