This is a beautiful example of a very late production WWII U.S. Army contract Stevens Model 520-30 trench shotgun with the correct bayonet lug adaptor and ventilated handguard. The right side of the barrel has the Stevens Company three-line address along with a small "P/Ordnance bomb" proof while the left side has the two-line markings of: "PROOF TESTED-12 GAUGE/-2 3/4 INCH CHAMBER-", with no barrel/bore choke markings. The left front edge of the receiver is stamped with a small "P/Ordnance bomb" proof followed by "MOD. 520-30", and towards the rear it is stamped "U.S." It is correctly serial numbered "70756" on the rear end of the trigger guard tang. It has a matte blued finish on the receiver, barrel, magazine tube, pump handle, while the heat shield has a high polish blue finish, with the correct pinkish tint on the bayonet lug due to its alloy metal construction. It is fitted with a smooth walnut forearm and pistol grip stock with a black plastic buttplate. The stock and bayonet lug are correctly fitted with sling swivels.

Excellent with 95% plus of the original blue finish overall with a hint of edge and high spot wear. The markings are crisp and sharp and the breech bolt is still in the white as originally manufactured. The buttstock and pump handle are also in excellent like new condition. An excellent, original WWII Stevens 520-30 Trench shotgun.