Glock 40 Gen 4

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Glock 40 Gen 4 Gun Stats

Glock 40 Gen 4

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The Glock 40 is a monster of a pistol. At 10mm, it packs enough punch to stop even the biggest of baddies with ease. Many people are turned off by the size of the Glock 40 because it is so large. But, there are many concealed carriers who have made their carry piece a double stack 10mm, simply because they want to pack more punch! A Gen 4 Glock has some additional features that gives it an advantage over its predecessors (Glock 19 vs Glock 17). The frame on the fourth generation glocks feature finger grooves which allows for better grip and comfort when holding onto your weapon during intense situations. Also, each Gen 4 comes standard with Trijicon night sights to allow for accurate shots in low light conditions. One of the most noticeable physical features on a Glock 40 Gen 4 is the accessory rail. This allows for easy attachment of flashlights, laser sights, and other tactical gear as needed during different situations. Ultimately, what bullets you will use to stop your enemy with the Glock 40 depends upon your situation at hand! Unfortunately, the only downside would have to be the weight. The Glock 40 is so large that many people cannot bear to carry it around all day. It does not help that it weighs about 2 pounds with nothing on it! So, if you are somebody who wants a lighter, smaller gun for concealment purposes (and comfort) then this may not be your cup of tea. The Glock 40 Gen 4 is an excellent choice for anybody looking for an extremely reliable and accurate gun with minimal recoil. Many people who use this pistol swear by its performance and power; even though it is overkill at times, most people appreciate any advantage they can get when taking down their target!

Glock 40 Gen 4 Specs

1 Brand

2 Category

Technical Data


10mm Auto





Gun Type

Semi-Automatic Pistol




Safe Action


Polymer Grip

Barrel Length





44 oz




1.35 Inches

Glock 40 Gen 4 Features

The Glock 40 Gen 4 is a full-size, long-slide competition and duty pistol chambered in 10mmAuto.  The long slide provides an 8.3 inch sight radius for better accuracy and houses a 6.02 inch barrel, giving the 10mm cartridge more muzzle velocity.  Its 15 round magazine provides a high standard capacity over other 10mm pistols on the market, and it has a reversible magazine release to accommodate both left and right hand users.

Glock 40 Gen 4 Ballistics

10mm Auto Ballistic Data
Range (Yards) Drop (inches) Velocity Energy Wind drift (inches) Time (milliseconds)
0 0 0 0 0 0
50 0 0 0 0 0
100 0 0 0 0 0
150 0 0 0 0 0
200 0 0 0 0 0
250 0 0 0 0 0
300 0 0 0 0 0
350 0 0 0 0 0
400 0 0 0 0 0
450 0 0 0 0 0
500 0 0 0 0 0

Glock 40 Gen 4 Capacity

Available out of the box with 10 or 15 round standard magazines, Glock and other aftermarket magazine manufacturers offer a 30 round magazine for Glocks chambered in 10mmAuto.

Glock 40 Gen 4 Ergonomics

WIth Glock’s 4th Generation pistols sporting finger grooves and an aggressive texturing on the side panels and back straps, the full size grip of the Glock 40 Gen 4 offers plenty of surface area for maximum control of the pistol.  However, with the double-stack magazine holding the rather long 10mmAuto cartridge, the physical size of the grip may be too large for a comfortable grip by users with smaller hands.  The slide serrations along the back of the slide allow for a solid grip while the user racks the slide to the rear to chamber a new round during reloads.

Glock 40 Gen 4 Fit & Finish

The Glock 40 Gen 4’s polymer frame is properly injection molded with no leftover overpress joints.  The nDLC coating on the slide holds up well against water and abrasion.  The optics mount cover plate is not a press-fit so there is a very slight gap between the slide and the optics plate, however it’s not severe enough to catch on clothing or foreign objects while on the draw.
Fit and Finish

Glock 40 Gen 4 Concealability

Coming in at 9.5 inches long and 5.5 inches tall, the Glock 40 Gen 4 is not an easily concealed firearm.  Concealment of the Glock 40 would be most easily done with a shoulder holster or under thick or oversized clothing like cold weather attire or a hooded sweatshirt.

Glock 40 Gen 4 Comparisons

How much is a Glock 40 Gen 4 worth?

In 2023 a new or used Glock 40 Gen 4 value varies depending on supply and demand. In the last 12 months there is great demand for a Glock 40 Gen 4 and most semi-auto pistols. The Price for a Glock 40 Gen 4 has increased in cost by $14.20 in 2023 compared to 2022.

Estimated New and Used Values for a Glock 40 Gen 4 Values are based on a basic model with no options or colors.

Condition Trade-In Private Party Dealer
New In box $333.67 $436.34 $513.34
Excellent $308.00 $410.67 $462.01
Very Good $282.34 $410.67 $462.01
Good $256.67 $385.01 $436.34
Fair $179.67 $333.67 $410.67
Poor $128.34 $256.67 N/A

Gun Value Conditions explained:

New in box - 100% condition in unopened box. Excellent - 95%+ condition with or without box.

Very Good - 90% - 95% condition (all parts/finish should be original).

Good - 80-90% condition (all parts/finish should be original).

Fair - 30% - 80% condition, parts, and finish may or may not be original. Must function properly and shoot.

Poor - under 30% condition. Firearm has severe wear and tear, does not function, or is damaged.

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