The new Thompson Model T5-9L20 carbine from Thompson Auto-Ordnance is chambered in 9x19mm Parabellum and comes with a 20-round stick magazine. Other than a knock-off in the 1970s, this carbine is the first Thompson to be chambered for a centerfire cartridge smaller than 45 ACP.

The Tommy Gun is a legendary firearm. Nothing more to say about that. But for as popular as it is, the design hasn’t gotten many modern updates, the way some classic firearms have…until now.

For the first time ever, a version of the Thompson submachine gun is being offered in a centerfire caliber smaller than it’s original .45 ACP chambering.

According to this story from, the Kahr Firearms Group, which owns the Thompson Auto-Ordnance line, introduced the Thompson Model T5-9L20 carbine chambered in 9x19mm this week, complete with an excellent-looking 20-round stick magazine.

“Fans of the Thompson product line have been asking about a 9mm for a number of years,” said Frank Harris, VP of sales and marketing, in a statement. “We really think that this 9mm Thompson is going to be a hit with shooting enthusiasts across the globe.” 

What could there be not to like—the look and feel of a classic Thompson as a non-NFA carbine that you can feed with light-kicking, affordable-to-shoot 9mm? No wonder people have been asking for it.

The receiver is machined from a solid billet of aluminum with walnut furniture. Because the gun is a semi-auto carbine with a 16.5-inch finned barrel and an overall length of 41-inches, it doesn’t require a tax stamp and can be purchased like a normal long gun.

The whole package, including one magazine, has an MSRP of $1,364.

There have only been a couple modern incarnations of the Thompson chambered in anything other than .45 ACP. Thompson produced the Model 1927A3 in the 1990s chambered in .22LR, and the short-lived Volunteer Arms company put out a Thompson-style gun chambered in 9mm called the Commando Mark 9 in the 1970s—but, like the company, it wasn’t around for long—plus it only looked like a Thompson in the vaguest of terms.

The new model from Thompson is an excellent reproduction of the original Thompson Model 28AC, just with a longer barrel and no full-auto selection, in addition to the caliber change.

The Tommy gun was designed during World War I by Brig. Gen. John Taliaferro Thompson in conjunction with Navy Cmdr. John Blish as a weapon that could shift the tide of trench warfare on the Western Front by acting as a sweeper. The Auto-Ordnance Company began producing Thompson submachine guns, chambered in .45 ACP to match the M1911, in 1921 with an initial contract filled by Colt. The fact that the Tommy Gun was chambered for the same round as the 1911 was more of a happy coincidence than anything else. After firing his prototype gun into live cattle and even human cadavers, Thompson determined the .45 was the round that did the most damage and was best suited for his design.

While the submachine guns came along too late to be used in WWI, many were bought and utilized by police departments and gangsters alike during Prohibition, when the distinctive gun with its vertical foregrip, optional drum magazine, and high rate of fire earned its nickname “The Chicago Typewriter” along with an air of infamy.

That reputation was somewhat dispelled when the gun went on to serve admirably alongside the M1 Garand, M1 Carbine, and M3 Grease Gun in World War II, during which over 2 million Thompsons were produced.

The company continued making select-fire models until 1986, after which only semi-automatic models have been produced. Kahr has owned the line since 1999.

Featured Image:

About the Author Anton Scharff

Anton is a hunting expert who respects nature. Ask him anything about large game. Lover of the great outdoors.

Share your thoughts

Your email address will not be published. Required fields are marked

{"email":"Email address invalid","url":"Website address invalid","required":"Required field missing"}