Glock G40 Gen 4 MOS 10mm

The Glock G40 Gen 4 MOS gives the 10mm Auto the barrel length it has always deserved. This is Glock’s long slide 10mm, built for hunters and outdoorsmen who want serious power in a platform their hands already know. With an optic ready slide, adjustable sights, and 15 plus 1 capacity, it is one of the most capable handguns in our case.

Who the Glock G40 Gen 4 Is For

This pistol is aimed squarely at handgun hunters, backcountry hikers who want a heavy hitting sidearm, and 10mm enthusiasts who feel shortchanged by compact barrels. The long 6.02 inch barrel wrings extra velocity out of the 10mm Auto and stretches the sight radius for precise work at distance.

Glock builds the G40 on the familiar Gen 4 architecture, so the controls, takedown, and trigger feel carry straight over from its duty pistols. If you already run a Glock, the transition takes about one magazine.

It is also a strong choice as a dedicated woods gun. The 10mm Auto delivers genuine field authority, and a full 15 round magazine of it is a comforting companion in big animal country.

Recoil with full power 10mm is stout, but the long slide helps, adding weight where it counts and smoothing the impulse. Most shooters find the G40 noticeably more pleasant to run than compact 10mm pistols, which means more practice and better hits.

Features That Earn Their Keep

The G40 pairs simple Glock operation with real outdoor capability:

• Modular Optic System slide milled to accept a red dot directly, with the optic sold separately
• Adjustable Glock sights standard for precise zeroing with your preferred load
• Long 6.02 inch barrel for added velocity and a forgiving sight radius
• Full 15 plus 1 capacity of 10mm Auto on tap
• Ships brand new with three 15 round magazines in the case
• Familiar Gen 4 frame, controls, and field strip shared across the Glock lineup

Glock G40 Gen 4 Specifications

The barrel measures 6.02 inches, which stretches the overall length to 9.49 inches. Those numbers are the whole point of the pistol, buying you velocity, sight radius, and a steadier hold on longer shots.

Capacity is 15 plus 1, and three factory 15 round magazines come in the box, so you are ready to shoot the day it arrives. For ordering confidence, this listing matches UPC 764503051722 and manufacturer model UG4030103MOS.

That model designation confirms the MOS configuration, meaning the slide is cut for direct red dot mounting. You get the exact optics ready setup you researched, not a lookalike.

Practical Use, Care, and Setup

Mount a pistol red dot on the MOS slide and the G40 becomes a legitimate hunting handgun, ready for hogs and deer where regulations allow, and a serious trail companion everywhere else. The adjustable sights mean you are never stuck if you prefer irons or want a backup zero.

Care is standard Glock simplicity. Field strip, wipe it down, apply light lube, and reassemble in a couple of minutes, then feed it quality 10mm ammunition and let it work.

Zero your optic with the exact load you plan to hunt with, then confirm from field positions rather than just the bench. Handgun hunting rewards that kind of preparation, and this pistol gives you the mechanical accuracy to make it count. Carry the two spare magazines loaded and a full day afield is covered.

Plan on a holster built for the long slide, since standard Glock rigs will not cover a 9.49 inch pistol. If you are still weighing options, our full firearms selection makes side by side comparison easy.

Few production pistols combine this much power, capacity, and optics readiness at a working price. The Glock G40 Gen 4 MOS is the long slide 10mm done right. Like every firearm, it ships to your local FFL for pickup after your background check.