Glock 40 Gen4 MOS Semi-Automatic Pistol 10mm Auto 6.02″ Barrel 15-Round Black

Glock 40 Gen 4 for Sale — Power, Precision & 10mm Performance

The search for the Glock 40 Gen 4 for sale continues to grow among shooters who want exceptional accuracy, enhanced velocity, and the proven reliability of Glock engineering. As one of the most powerful pistols in Glock’s lineup, the Glock 40 Gen 4 10mm stands out for hunting, backcountry defense, competition shooting, and tactical use. This guide explores the firearm’s features, pricing, comparisons, and what makes it a top choice in the Glock Gen 4 40 category.

What Is the Glock 40 Gen 4?

The Glock 40 Gen 4 is a long-slide 10mm Auto pistol designed for superior ballistic performance. Its extended barrel allows the cartridge to reach maximum velocity, making it far more effective for deep penetration and accuracy. For shooters who want more power than a .40 S&W model such as the Glock 23 Gen 4 40 cal or Glock 22 Gen 4 40 cal, the Gen 4 Glock 40 offers a significant step up.

Its polymer frame, ergonomic grip texture, and dual recoil spring system create a smoother shooting experience compared to earlier Glock generations.

Glock 40 Gen 4 MOS — Optics-Ready Advantage

One of the standout features is the Glock 40 Gen 4 MOS, which includes the Modular Optics System. This built-in platform allows shooters to mount red-dot optics directly to the slide without aftermarket machining.

With the rise of competition shooting and red-dot carry setups, many buyers specifically search for the Glock 40 MOS Gen 5 and Glock 40 Gen 4 MOS options. Although the MOS feature is available on both Gen 4 and Gen 5 models, many shooters believe the Gen 4 offers better recoil balance with 10mm loads.

Glock 40 Gen 4 Price — What to Expect

The Glock 40 Gen 4 price varies depending on condition, included accessories, and whether the pistol features MOS optics compatibility. Standard factors affecting pricing include:

• Brand-new vs. used condition

• Presence of original box and magazines

• MOS configuration

• Aftermarket upgrades such as triggers, sights, or barrels

Because the model is highly sought after and not produced in extremely large numbers, prices tend to stay strong compared to other 40 Glock Gen 4 pistols.

Glock 40 Gen 4 Review — Why Shooters Love It

Most Glock 40 Gen 4 review highlights emphasize:

• Superior accuracy from the long slide

• Powerful 10mm ballistics

• Reduced felt recoil due to added slide weight

• MOS optics compatibility

• Legendary Glock reliability

The extra sight radius gives the pistol precision rarely matched in high-powered semi-autos, making the Gen 4 Glock 40 a favorite among hunters and outdoorsmen.

Glock Gen 4 40 Cal Comparisons

Glock 22 Gen 4 40 Cal

A duty-oriented .40 S&W pistol, extremely reliable and popular. Many users add Glock 22 Gen 4 40 cal accessories such as upgraded lights, night sights, and extended controls.

Glock 23 Gen 4 40 Cal

A compact variant ideal for concealed carry but less powerful than the 10mm Glock 40.

3rd Gen Glock 27 Mini 40 Cal Parts

Shooters who prefer small-frame carry pistols often compare or accessorize the Glock 27. While it’s not as strong as the 10mm models, its parts remain in high demand.

Glock 40 Gen 5 Release & Modern Options

With Glock’s updates to its fifth-generation lineup, many shooters research the Glock 40 Gen 5 release or search for a Glock Gen 5 40. While some Gen 5 .40 S&W pistols exist, the long-slide 10mm version is best known in the Gen 4 MOS configuration. This makes the Glock 40 Gen 4 for sale market even more valuable because many shooters prefer the Gen 4 version.

Is the Glock 40 Gen 4 Right for You?

Choose the Glock 40 Gen 4 if you want:

• Maximum 10mm power

• Better long-range accuracy

• An optics-ready, competition-ready platform

• A reliable pistol for hunting or defense

Among modern handguns, the Glock 40 Gen 4 remains a top performer and a favorite for shooters seeking strength, precision, and long-term durability.