J B Wood, The Gun Digest Book of Firearms Assembly/Disassembly Part V - Shotguns, Iola, Wisconsin, Krause Publications, (ISBN978-0-87349-400-7, lire en ligne), p. 474
Charles Q. Cutshaw, Tactical Small Arms of the 21st Century: A Complete Guide to Small Arms From Around the World, Iola, Wiosconsin, Gun Digest Books, , 338–339 p. (ISBN978-1-4402-2709-7, lire en ligne)
United States. Bureau of Alcohol, Tobacco, and Firearms, Your guide to federal firearms regulation, Dept. of the Treasury, Bureau of Alcohol, Tobacco, and Firearms, (lire en ligne), p. 109