Summary: The Glock 19X, a contender in the U.S. military's XM17 Modular Handgun System competition, narrowly lost to SIG Sauer's P320 models due to cost, an ammunition partnership with Winchester, and only submitting a full-size version. Despite the setback, Glock's popularity remains undisputed among law enforcement agencies in the U.S., with an estimated 65% adoption rate, including the FBI and Secret Service. The Glock 19X, Glock's first crossover pistol, combines features from the Glock 17 and 19 models, offering versatility and enhanced accuracy. Its civilian market success, selling 100,000 units in six months post-release, showcases its continued demand and performance excellence.

Glock 19X: A Popular Choice Among Law Enforcement and Civilians Alike

Sometimes second place is just not good enough. The Glock 19X almost won the XM17 Modular Handgun System competition to replace the Beretta M9. Glock was so close that the famous Austrian gun maker filed a complaint with the U.S. Government to protest the decision that awarded the contract to SIG Sauer.

The government said the SIG entrants, military versions of the P320 pistol, came in cheaper than the Glock proposal. SIG Sauer also had an ammunition partnership with Winchester that Glock didn’t have. SIG submitted two models for testing and Glock entered only its full-size version.

Law Enforcement Chooses Glock

If you judged Glock just on how many law enforcement agencies around the world use one of its models, the company would have won the award. In the United States alone, Glocks have proliferated mightily and are used by the majority of police departments around the country. An estimated 65 percent of local, state, and federal law enforcement agencies have adopted some form of the Glock pistol. This includes the FBI, Customs and Border Protection, and the Secret Service.

Civilians and Military Prefer Glock Too

The Glock 19X is also popular with civilians even though it lost the XM Modular Handgun System bid. As soon as it was released to the public in 2018, it sold 100,000 pistols in less than six months.

Even though SIG won the trials, Glock is still widespread in the U.S. military. In September 2021, The army awarded a five-year, $15 million contract to Glock “for various firearms, spare magazines, and spare parts.” Glock remains widespread in various special operations forces units.

Let’s take a look at what makes the Glock 19X special and why it came up short against the SIG Sauer M17/ M18.

Glock 19X Brings A Lot to the Table

The Glock 19X is Glock’s first “crossover” pistol, it adds the full-size Glock 17 polymer frame to the smaller Glock 19 all-metal slide. The 19X has ambidextrous controls, and the company lauds its excellent accuracy due to the GLOCK Marksman Barrel, a polygonally rifled barrel. The nPVD slide coating keeps the corrosion down to a minimum. It’s “coyote colored” rather than the classic black that Glock is known for.

The Glock 19X comes standard with 17-round magazines, it can be optionally loaded with 19, 24, 31, or even 33-round magazines. The Glock 19X has three different backstrap sizes (small, medium, and large) depending on the shooter’s hand size.

It weighs around 31-ounces loaded. The barrel length is a hair over 4-inches and the overall length is 7.4-inches.

But Why Did the Glock 19X Lose the Competition to Be the Military’s Standard Issue?

After Glock filed a complaint after losing the initial competition, the Government Accountability Office did a head-to-head test between the Glock 19X and the Sig Sauer M17/ 18 for a final determination.

The SIG models scored outstanding in initial reliability; outstanding in ammunition; outstanding in three categories of license rights, and outstanding in three aspects of manufacturing including ammunition.

The 19X was outstanding in initial reliability; only “acceptable” in warfighter ergonomics; and “marginal” in ammunition licensing.

So, the deciding factors were ammunition licensing, price, and ergonomics. SIG Sauer was smart to have the ammunition partnership with Winchester. And Glock took the silver medal, but in consolation, got a pistol that is still popular in the civilian market.

Dr. Brent M. Eastwood: About the Author 

Brent M. Eastwood, PhD, is the author of Humans, Machines, and Data: Future Trends in Warfare. He is an Emerging Threats expert and former U.S. Army Infantry officer. You can follow him on Twitter @BMEastwood. Email us with any questions: [email protected]. 

All images are Creative Commons.