Product Description The Thompson T12BKT 10-round drum magazine delivers the iconic look and reliable function expected for compatible Thompson platforms. Built from blued steel and manufactured in the USA to original-style specifications, this .45 ACP drum features a 6.75-inch diameter and ships with a drum installation device ("3rd hand") to assist with installation. It is designed to fit 1927-A1 Thompson models and modern Thompson guns made in Worcester, Massachusetts, and is not intended for Thompson M1 models (side charging handle) or Thompson guns made in West Hurley, New York, or produced before 1990. Product Highlights 10-round .45 ACP drum magazine designed for compatible Thompson platforms Durable blued steel construction with classic Thompson drum styling 6.75" drum diameter for compact, authentic-profile performance Includes drum installation device ("3rd hand") to aid proper fitment Made in the USA to original-specification drum magazine standards Specs Brand Name: Thompson Manufacturer Part Number: T12BKT UPC: 602686210225 Magazine Type: Drum Caliber: .45 ACP Capacity: 10 rounds Material: Steel Finish: Blued Drum Diameter: 6.75 in Included: Drum installation device ("3rd hand") Fitment: Fits 1927-A1 Thompson models and modern Thompson guns made in Worcester, MA; does NOT fit Thompson M1 models (side charging handle) and does NOT fit Thompson guns made in West Hurley, NY or made before 1990 Country of Manufacture: USA Disclaimer: We strive to provide accurate and up-to-date product descriptions, specifications, and images; however, errors or omissions may occasionally occur. We are not responsible for any inaccuracies or discrepancies in the content provided. If you notice anything incorrect or unclear, please contact us so we can correct it. When in doubt, we recommend verifying details directly with the product&&';;s manufacturer.