This is an excellent example of a World War II U.S. Army contract Stevens Model 520-30 shotgun in riot gun configuration. The left of the barrel has the three-line Stevens/Savage address along with the two-line gauge markings. Choke gauges at cylinder. The left of the receiver is stamped "MOD. 520-30", and it has the correct "P" and Ordnance bomb stamps on the left breech of the barrel and left front edge of the receiver. It has a blue finish with smooth forearm and pistol grip stock with a black plastic buttplate.