Ordinarily, I would advise firearm owners to seek out original, factory-produced magazines for their firearms rather than purchasing aftermarket magazines. Generally speaking, it is beneficial to seek out these original, factory-produced magazines as they are manufactured by the same company and to the exact same specifications and tolerances as those that ship with the firearms for which they are designed. Additionally, they are manufactured using the same materials, a provision which ensures both proper fit and function in your firearm. However, finding original factory-produced magazines for older firearms like the Thompson submachine gun can sometimes prove both difficult and expensive. But when the alternative is a Keepshooting.com brand magazine, then you have absolutely nothing to worry about.

Each Keepshooting.com magazine, including our Thompson® compatible drum, begins with a guarantee. Our goal prior to production is the manufacture of a magazine that is not only 100 percent functional, but also 100 percent reliable. As such, we guarantee the function and reliability of all of our house-brand magazines 100 percent. If for any reason you are unsatisfied with the performance of your magazine, it can be returned for a refund of the purchase price provided it is free from modification, damage and visible signs of usage or wear.

How can we offer such a guarantee? Prior to release, a random sampling of every magazine we carry is rigorously field tested to ensure proper fitting, feeding and ejection. Not to mention, our magazines are manufactured using quality materials alongside modern manufacturing methods. If this sounds expensive, that is because it is. But due to the number of magazines we have made, our prices are driven down and in turn passed on to you.

As noted, the Thompson® compatible drum is a drum magazine with a design that is based on the original WWII drum magazines. As such, each drum features a full steel construction and is designed to hold and feed 50 round of .45 ACP ammunition to your firearm. Additionally, the drum features a blued finish to protect against rust and corrosion.

Note: Thompson® is a registered trademark of Saeilo Enterprises, Inc. The use of the Thompson® trademark is not intended to and does not represent any affiliation with Saeilo Enterprises, Inc.