Good condition WWII US military Stevens Model 520-30 riot gun 12 gauge pump action shotgun. Left side of receiver is marked “U.S.”. Left sides of receiver and barrel have “P” and “flaming bomb” markings. Mechanically functions fine. Receiver and barrel do not match. Metal finish is original blue showing some wear to brown and gray patinas. 20” barrel has a bright excellent bore. Stock has original finish and shows some handling marks and dings. Left side of wrist has a chip and a small hairline, and right side of wrist has a crack. Top of wrist has two cracks behind the receiver tang. A good example of an original WWII US military Stevens 520-30 riot gun.