UMAREX Glock 19X MOS CO2 4.5mm BB CO2 Blowback Air Pistol
The Glock 19X MOS CO2 version brings a more complete feature set to what was already a popular replica. Based on a less common MOS-cut variant of the real-steel 19X, this airgun version adds optics compatibility, a threaded muzzle, and improved sights straight out of the box.
Built in the same Japanese factory as the newer Glock 17 Gen 5 MOS models, this isn’t just a cosmetic update. It addresses a few of the limitations people had with earlier versions and makes the platform far more usable with modern accessories.
Key Features
- MOS slide cut for mounting reflex sights
- Includes 4 adapter plates (Docter, Trijicon, C-More, Leupold footprints)
- Threaded muzzle (M14x1.0 CCW) for suppressor compatibility
- Raised iron sights for use with a moderator fitted
- Realistic blowback action
- Field strippable design
- Lanyard loop on the frame
- Improved FDE/Coyote finish
Performance / Use Case
As a CO2 blowback pistol, this is aimed more at training, plinking, and general use rather than precision target shooting. The blowback gives a more realistic shooting experience, though as expected, it does come at the cost of a bit of efficiency compared to non-blowback models.
The addition of the MOS cut makes a genuine difference here. Being able to run a red dot on a CO2 pistol like this opens it up for faster target acquisition and a more modern shooting setup, which wasn’t really an option on the earlier 19X version.
The threaded muzzle is there if you want to run a suppressor-style accessory, though in airgun terms this is usually more about aesthetics than dramatic sound reduction.
Build & Design
This is a licensed Umarex Glock replica, so the overall look and feel are about as close as you’ll get in this category. The updated finish is a noticeable improvement, with a more convincing FDE/Coyote tone compared to older versions that could look a bit flat.
Controls, dimensions, and takedown all follow the real platform closely, including the ability to field strip it in a realistic manner. The raised sights are a practical addition rather than just cosmetic, especially if you plan on fitting anything to the front.
Specifications
- Energy: < 2.0 J
- Calibre: 4.5mm (.177) BB
- Power Source: 1x 12g CO2
- Magazine Capacity: 17 rounds
- Shot Capacity: approx. 60 shots (temperature and usage dependent)
- Muzzle: M14x1.0CCW
- Trigger: Single Action
- Safety: Automatic Trigger Safety
- Length: 195 mm
- Weight: 670 g
Verdict
This is a more complete version of the 19X platform. The MOS cut alone makes it far more versatile, and the added features mean fewer compromises if you want to run optics or accessories.
It’s still a CO2 blowback pistol at the end of the day, so expectations should be set accordingly, but as far as replicas go, this is one of the more usable and better thought-out Glock options currently available.
