A reported 12,174 Stevens Model 620 (aka 620A) shotguns of all types were manufactured c. 1940-1945 on U.S. contract during World War II, per page 95 of "Complete Guide to United States Military Combat Shotguns" by Bruce Canfield. These were adopted for use by the Army and Marine Corps, and remained in service throughout the Korean War and Vietnam War. The Stevens Model 620 was a refinement of the Model 520. A solid frame hammerless shotgun, the 620 was capable of being taken down for transport as well as having slam fire capability, making it both easy to move about as well as a vicious source of firepower. A single brass bead sight is installed on the bayonet lug adapter, with a six-hole heat shield, cylinder choke, "P" above a flaming bomb stamp along with the three-line Stevens/Savage company Chicopee Falls address on the right side of the barrel, with the gauge and 2 3/4 inch chamber markings on the left. The "P" and flaming bomb stamp are repeated on the left side of the receiver along with "MODEL 620" and "U.S.", and the serial number and "M/S" on the underside ahead of the trigger guard. Two more "P" stamps are located on the upper left breech of the barrel and receiver. Fitted with a smooth round forearm, pistol grip stock and serrated plastic buttplate. 13 1/2 inch length of pull.