Does anybody know if the 12 gauge and 20 gauge frames are the same size? I'm needing a replacement stock for the 20 ga. and don't have anything for a comparison.
Winchester 1200, 1300, 1400, 1500 in 12, 16 or 20 gauge are all the same animal. Slide arm extension lengths vary. So if you want a matching set you need to know that length.
There's a Winchester stock sale going on at ar-7.com now.