This is a WWII U.S. Army contract Stevens Model 520-30 shotgun in a trench gun configuration with a bayonet lug adapter and replacement parkerized ventilated handguard. The right side of the barrel has the three-line address along with "P/Ordnance Bomb" at the breech. The left side has the two-line gauge markings of: "PROOF TESTED-12 GAUGE/-2 3/4 INCH CHAMBER-". Choke gauges at a tight cylinder. The left side of the receiver is stamped "MOD. 520-30" and it has the correct "P/flaming bomb" proofs at the front edge of the receiver. It has an all blue finish with smooth forearm and pistol grip stock with a black plastic buttplate. The stock and bayonet lug are correctly fitted with sling swivels. The bayonet adaptor and handguard are parkerized with four rows of holes and a "W" marking on the adaptor, indicating a Winchester adaptor and handguard have been fitted to the barrel. Includes a 3 piece wood and brass cleaning rod with a canvas case.

Fine as assembled with 70% of the original blue finish. Showing scattered small surface scratches, clear markings, areas of high point and edge wear, and general handling marks. The handguard is a replacement. The wood is fine with scattered indentations, general handling marks, and a few small chips on the buttplate. Mechanically excellent.