99: Mossberg Model SA-20 All Purpose Field in 20 Gauge with 26" Barrel. This semi-auto shotgun features a 2 3/4" chamber, a 26" vented ribbed barrel with removeable chokes, a 5 shot tubular magazine, bead sights, checkered walnut stock and forend and a blued metal finish. Estimated Value: Low: $500 High: $650