Glock 20 Gen5 MOS – A Powerful Upgrade for the 10mm Enthusiast
An improved version of the Gen3, the Glock 20 Gen5 MOS offers many enhancements and upgrades in the 10mm handgun market. Among the most potent semi-automatic handguns on the market is this one. Hunters and those looking for a dependable, high-impact sidearm have traditionally preferred it.
The Gen5 model introduces several significant updates, particularly its Modular Optic System (MOS), which distinguishes it within Glock’s lineup. But does it truly live up to the hype? Let’s break down the details.
Glock 20 Gen5 MOS Detailed Specifications
The Glock 20 Gen5 MOS comes in two versions, each with slightly different magazine capacities but otherwise very similar specifications. Here’s a look at both:
GLOCK 20 GEN5 MOS 10MM 4.61 3 15RD
GLOCK 20 GEN5 MOS 10MM 4.61 3 10RD
| Specification | GLOCK 20 GEN5 MOS 10MM 4.61 3 15RD | GLOCK 20 GEN5 MOS 10MM 4.61 3 10RD |
| Manufacturer | Glock | Glock |
| Model | 20 Gen5 | G20 G5 MOS |
| UPC | 764503054273 | 764503054228 |
| SKU | PA205S203MOS | PA205S201MOS |
| Weight(With loaded magazine) | 38.80 oz (3.6000 lbs) | 38.80 oz (3.9500 lbs) |
| Accessories | 3 Mags | 3 Mags |
| Action | Safe Action | Safe Action |
| Barrel Description | GMB | GMB |
| Barrel Finish | Black | Black |
| Barrel Length | 4.61″ | 4.61″ |
| Barrel Material | Steel | Steel |
| Caliber/Gauge | 10mm Auto | 10mm Auto |
| Capacity | 15 | 10 |
| Description | Optics Ready | Optics Ready |
| Frame Color | Black | Black |
| Frame Description | Polymer Frame w/Picatinny Rail | Polymer Frame w/Picatinny Rail |
| Frame Material | Polymer | Polymer |
| Frame Size | Standard | Standard |
| Grip Material | Polymer | Polymer |
| Grip Type | Interchangeable | Interchangeable |
| Sights | Fixed Glock Sights | Fixed Glock Sights |
| Safety | Firing Pin/Trigger Block | Firing Pin/Trigger Block |
| Series | Gen5 MOS | Gen5 MOS |
| Slide Color | Black | Black |
| Slide Description | Serrated | Serrated |
| Slide Finish | Black nDLC | Black nDLC |
| Slide Material | Steel | Steel |
| Stock Material | Polymer | Polymer |
| Type | Striker Fired | Striker Fired |
| Weight | 38.80 oz | 38.80 oz |
| Width | 1.38″ | 1.38″ |
| Length | 10.50″ | 10.75″ |
| Height | 5.51″ | 5.51″ |
| Includes | 3 Magazines/Mag Loader/Cleaning Kit/Pistol Case/Backstrap Set/Gun Lock | 3 Magazines/Mag Loader/Cleaning Kit/Pistol Case/Backstrap Set/Gun Lock |
| OAL | 8.07″ | 8.07″ |
| Magazine Capacity | 15 | 10 |
| Max Chamber Size | 15 | 10 |
| Finish | COLORED | Gas Nitride |
| Finish/Color | nDLC | Matte |
| Grips | Black Interchangeable Backstrap | Black Interchangeable Backstrap |
Ergonomics and Grip: A New Standard
The revised grip design is one of the most notable upgrades to the Glock 20 Gen5 MOS. Compared to the Gen3, which some users found difficult to use, the Gen5 has a more ergonomic grip circumference, fully curved edges, and no bulge. A more comfortable and controlled shooting experience is offered by its revised grip.
The G20 Gen5 MOS also comes with three adjustable backstraps, which allow shooters to tailor the fit to their specific hand size. In this case, the medium backstrap is the most comfortable and is highly recommended for most users.
Performance & Accuracy: Hitting the Mark
When it comes to trigger performance, the Glock 20 Gen5 MOS outperforms its Gen3 predecessor. The trigger pull is lighter, averaging 4 lbs. 12 ounces, and the reset is significantly improved. While it still has that “Glock squishy” feel when compared to a tuned connector, it represents a significant improvement over the previous version.
The Glock 20 Gen5 MOS stands out as a precise and dependable 10mm handgun, ideal for individuals who value precision across long distances. During testing, it routinely hit steel targets from 100 yards, demonstrating amazing performance for a handgun. Most loads produced 2 to 2.5 inch groups at 25 yards after bench resting. This combination of accuracy and dependability makes the G20 Gen5 MOS an excellent choice for enthusiasts and professionals looking for a versatile handgun for long-range shooting.
Sights and Optics: A Game-Changer
The Gen5 MOS system is an excellent option for anyone who wants to mount optics directly to their weapon. While the Glock 20 Gen5 still comes with plastic stock sights, the MOS system allows owners to readily add an optic without the need for a separate mounting plate. As a bonus, the gun comes with a Trijicon RMR footprint plate for those who prefer it.
The Glock 20 Gen5 MOS is compatible with optics like the Holosun SCS MOS, which can be easily mounted and quickly zeroed. Adding an optic enhances target acquisition, making it more efficient for rapid shots and particularly beneficial in low-light conditions, improving overall shooting performance.
Magazine & Reloading: Efficient but Room for Improvement
The Glock 20 Gen5 MOS comes with a 15-round magazine capacity in the PA205S203MOS version, while the PA205S201MOS comes with a 10-round magazine. The magazines include a little flare in the magwell, which aids in loading and allows for faster magazine drops. When the magazines were inserted into the grip, the baseplates moved somewhat, causing some play and noise. While this has no effect on the handgun’s operation, the noise may be a consideration for users wanting to carry the G20 Gen5 MOS as a backup firearm, particularly in settings where silence is essential, such as bowhunting.
Pros and Cons
Pros:
- Better Trigger: A noticeable upgrade over the Gen3 trigger.
- Slide Improvements: Enhanced slide serrations, carry melt, and optics cut.
- Ambidextrous Controls: Reversible mag release and ambidextrous slide lock.
- Extremely Reliable: As with all Glocks, the G20 Gen5 MOS is built to last.
- Improved Grip: The Gen5 grip is more comfortable and fits better than the Gen3.
Cons:
- Magazine Release: This can be too easy in some scenarios.
- Magazine Play: Magazines have some play in the grip, leading to noise, particularly when used as a backup firearm for bowhunting.
Conclusion:
The Glock 20 Gen5 MOS is, without a doubt, a standout choice among 10mm handguns. It combines dependability, precision, and the ability to add an optic with Glock’s famed robustness and performance. Whether hunting, competitive shooting, or just looking for a powerful, precise pistol for defense, the G20 Gen5 MOS delivers in every way.
For those who enjoy shooting at long distances, value improved ergonomics, or prefer optics on their pistols, this model has everything you need. There are a few minor downsides, but they do not detract from the overall experience.
Please Note: Product pricing and availability may vary. Please verify current pricing and stock information from our website at https://www.bigstonesarmory.com.