Armed Forces in World War II, the Korean War, and especially the Vietnam War, where it gained a great reputation for reliability in the jungles of Vietnam when generally used by special and special operations forces like the Navy SEALs and Army Green Berets. The largest single users outside the US Military were the New York City Police Department and the Los Angeles Police Department. The New York City Police Department used 2 versions of the Model 37: one with a 13" barrel with forend hand-strap for its Emergency Service Unit and one with an 18" barrel for its Highway Patrol and solo patrol officers of designated low-crime precincts through a short-lived program spanning from the late 1970s to early 1980s. The Model 37 was issued by the LAPD beginning in the 1940s and remained in service until the late 1990s. Other users include the Los Angeles County Sheriff's Department and various military, police, and security agencies and prisons around the world. The Ithaca 37 remains a popular choice among civilians for both sport and personal protection. The Model 37 Featherlight has commonly been seen in the hands of farmers and hunters in the midwestern United States. :Unlicensed domestic manufacture under the "Bataan 71" moniker : United States Armed Forces United States Air Force United States Army: Special Forces and Long-Range Patrols United States Marine Corps: 1940s to 1980s United States Navy: SEAL Teams and Underwater Demolition Teams, often used with a duckbill muzzle attachment for flatter, wider shot spread Los Angeles Police Department New York Police Department: 1930s to 2009, replaced by the Mossberg 590 See also Combat shotguns List of shotguns Winchester Model 12 Notes References Fawcett, Bill. Hunters & Shooters, An Oral History of the U.S. Navy SEALS in Vietnam. NY: Avon Books, 1995. , pp. 79–80, especially. Snyder, Walter C. Ithaca Featherlight Repeaters, The Best Gun Going. NC: Cook and Uline Pub, 1998. Police weapons Pump-action shotguns Ithaca Gun Company firearms World War II firearms of the United States Cold War firearms of the United States Shotguns of the United States Military equipment introduced in the 1930s