This is an excellent example of a very desirable WWII U.S. Army contract Stevens Model 520-30 trench shotgun with the correct bayonet lug adapter and ventilated handguard. The right side of the barrel has the three-line address along with "P/Ordnance Bomb" at the breech with the three-line Stevens Company address. The left side has the two-line gauge markings of: "PROOF TESTED-12 GAUGE/-2 3/4 INCH CHAMBER-". Choke gauges at cylinder. The left side of the receiver is stamped "MOD. 520-30", and it has the correct "P" proof on the barrel and front edge of the receiver. The lower right side also has the correct "P/Ordnance Bomb" proof. 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. Length of pull is 14 inches.

Excellent with 97% plus of the original blue finish overall showing only minor edge and cycling wear. The stock and pump handle are also in excellent condition showing only minor handling marks. There is a hairline crack on the buttplate either side of the bottom screw. Mechanically excellent. This is one of the finest conditioned Stevens Model 520 Trench Shotgun's RIAC has ever offered at auction!