This is an Auto Ordnance factory 100-round drum magazine for Thompson submachine guns in .45 ACP. This magazine is compatible with modern Thompson 1927-A1 models manufactured in Worcester, MA. It will not fit firearms made in West Hurley, NY or before 1990.

Get maximum firepower with Auto Ordnance’s all-steel 100-round drum magazine for Thompson submachine guns!

Founded by John T. Thompson as the company that would go on to launch the historic Thompson submachine gun, Auto Ordnance stays true to the heritage of America’s most iconic weapons while continually refining and improving designs.

Engineered for optimum fit and function in all generations of Thompson guns, these extended drum magazines are the ultimate in timeless, man-stopping firepower.

Grab a few 100-round drums for your Thompson gun today!