Auto-Ordnance Thompson 1927-A1 10rd Drum .45 ACP

This Auto-Ordnance drum magazine is a purpose-built 10-round feed device for Thompson 1927-A1 rifles and compatible modern Thompson long guns made in Worcester, MA. Constructed to match original specifications, it presents the classic drum profile with a 6.75″ diameter and blued steel finish. The drum ships with an installation device to aid fitting during loading and assembly.

Key Specifications

• The caliber is .45 ACP.
• The capacity is 10 rounds.
• The drum diameter measures 6.75 inches.
• Designed to fit 1927-A1 Thompson models and modern Thompson guns made in Worcester, MA.
• Will not fit Thompson M1 military models (side charging) or Thompson guns made in West Hurley, NY or manufactured before 1990.
• The construction material is steel.
• The finish is black (blued).
• The product type is a drum magazine.
• Each drum includes a drum installation device for assistance during installation.

This drum delivers period-correct form and function for owners of compatible Thompson long guns who want an authentic, rugged magazine option. Built in the U.S. to the original specifications, it combines durable blued steel construction with a compact 10-round capacity and straightforward installation hardware, offering a reliable, historically faithful component for collectors and practical users alike.