2/7/19 - This is a beautiful and original US Military riot shotgun from WWII, the Stevens Model 520-30. It is US marked with multiple flaming bomb proofs denoting military issue. The bluing is excellent with only minor receiver wear on the high edges, and a fantastic bore. The wood is all in terrific shape with no major flaws. There were ~33,000 Stevens 520-30s produced for the war, with a mix of trench guns, riot guns and long-barreled training guns among those 33,000.
