Glock 20 vs Glock 40: Comparison for Gun Enthusiasts

Glock is one of the family handguns with the power in terms of its associated name, both Glock 20 and 40. The term is applied to the most powerful, semi-automatic pistols in 10mm Auto caliber by Glock. Both guns have a lot in common but serve different purposes.
Comparison b/w Glock 40 & Glock 20
Features | Glock 40 | Glock 20 |
Caliber | 10mm Auto | 10mm Auto |
Frame Size | Full-size | Full-size |
Barrel Length | 6.20 inches (117mm) | 4.61 inches (153mm) |
Overall Length | 8.75 inches (222mm) | 8.03 inches (204mm) |
Height | 5.43 inches (138mm) | 5.47 inches (139mm) |
Width | 1.34 inches (34mm) | 1.25 inches (352mm) |
Weight | 29.83 oz (845G) | 26.28 oz (745G) |
Magazine Capacity | 15+1 round | 15+1 round |
Purpose | Ideal for hunting and long-range shooting | Idea for self-defense and general use |
Additional Features | Longer barrel and sight radius for accuracy | Slightly shorter, more compact design |
Main Characteristics of the Glock 20
The Glock 20 is a full-size pistol that offers a healthy dose of versatility and power. Here are the features worth mentioning:
- Caliber: The Glock 20 fires the 10mm Auto round, a round that packs a heavy and very effective punch best for self-defense and hunting.
- Magazine Capacity: The pistol has the advantage of being able to hold 15 rounds. In other words, you have enough ammunition in a magazine before running out and having to reload.
- Size and weight: The Glock 20 is built on a normal Glock frame, 8.03 inches in length, and weighs 25.5 ounces without a round. It is a bit bigger than most compact pistols, but still well within the reach of most users.
- Ergonomics: Like all Glocks, the Glock 20 is therefore simple in its design to operate and use. The grip is comfortable, and the controls are all easy to operate.
Main Characteristics of the Glock 40
It is similar in features to the Glock 20 but further improvements made it more favorable in size and accuracy. This is what differentiates it:
- Caliber: Like the Glock 20, the Glock 40 is made to house 10mm Auto cartridges; thus, there is no difference in performance at all.
- Magazine Capacity: The Glock 40 carries the same capacity in an empty magazine as the Glock 20, which is 15 rounds.
- Size and Weight: The Glock 40 measures longer, at 8.78 inches. It sports a barrel that is long, measuring 6.02 inches; thus, its longer accuracy comes. For all its length, it weighs a little more, at 29.4 ounces when unloaded.
- Ergonomics: The Glock 40 belongs to a long slide series of Glocks, hence more accurate especially towards greater distances. With its longer barrel and slide, it manages recoil significantly better, and target precision impresses.

Glock 40 vs Glock 20
Barrel Length: While the Glock 40 boasts a long barrel, the figure is at 6.02 inches, against the Glock 20 at 4.61 inches. Thus, making the Glock 40 even more accurate because it can shoot for great distances. It is really handy when you’re stalking or target shooting.
- Accuracy: The Glock 40 offers better accuracy as it’s got a longer barrel. This means a good sight radius or better aiming precision, most likely.
- Size and weight: The Glock 40 is much bigger and heavier than the Glock 20. It’s specifically for target shooting or hunting; however, the Glock 20 is a general-purpose firearm.
- Intended Use: The Glock 20 is pretty fine for concealed carrying, self-defense, or defense at home, while the Glock 40 goes for longer distances which it’s very good and preferred among hunters and target shooters.
Which One Should You Choose?
If you want a powerful handgun for self-defense or concealed carry, you can’t go wrong with the Glock 20. Its size and weight make it very versatile, and its 10mm caliber will more than give you any stopping power you might need.
On the other hand, anyone wanting great accuracy from a gun and intending to use it for hunting or target shooting. He will find that the Glock 40 is the better option for them. The longer barrel, along with more overall size, would make it ideally suited for hitting targets far away.
Conclusion
The Glock 20 and Glock 40 are both solid weapons in the 10mm Auto caliber: the same but different. The Glock 20 would be more compact, being an everyday carry option, while the Glock 40 would be larger and more accurate, meant for long distances. Self-defense, hunting, or target practice will have a suitable weapon for every purpose in these two fantastic pistols.