Here’s a double you rarely see. It’s a sxs 20ga Beretta 626 Onyx, and it’s up for auction now, with the listing ending tomorrow, 12/24/2013, @ 6:22:43 PM ET.

From the info I’ve found, it looks like Beretta offered 20 gauge 626s from 1985-1987. I can’t imagine the company made many of them.

20ga Beretta 626 Onyx Side-by-Side, 28″ bbls:  These guns are rare to begin with and the 28″ barrels are ultra rare. This gun is in excellent shape with only safe marks. This gun may possibly have one box of shells through it and locks up as new. It has 28″ barrels with factory interchangeable chokes. Cylinder/IC are included. It has ejectors and sst. Barrels and receiver have the factory matte finish so you do not have to worry about the blueing rusting. Center bead installed. LOP is 14 1/2 to the factory Beretta Recoil Pad. DAC is 1 1/2 and DAH is 2 3/8 and the stock is neutral.