Umarex Glock 17 Gen 5 MOS 18 Round Air Pistol (.177 / BB)
The Umarex GLOCK 17 Gen5 MOS is a full-size .177 BB CO₂ air pistol with a realistic blowback metal slide and 18-round all-in-one magazine that also houses the 12g CO₂ capsule. Its standout feature is the integrated MOS optics-ready slide, allowing red dot mounting with the correct adapter plates. It also features a GLOCK-style accessory rail, double action trigger, trigger safety and manual safety, making it a modern, practical and highly authentic pistol to shoot.
The Umarex GLOCK 17 Gen5 MOS 18 Round Air Pistol is a highly realistic .177 BB CO₂-powered replica of one of the world’s most recognisable polymer handguns, combining authentic styling with modern tactical versatility. Built as a full-size pistol with a large frame, long sight radius and metal blowback slide, it offers a convincing shooting experience along with the handling and feel you would expect from a premium GLOCK air pistol.
A standout feature of this model is the Modular Optic System (MOS), which allows the pistol to be adapted for red dot sight mounting using separately available adapter plates. Compatible with Docter, Trijicon, C-More and Leupold footprints, the MOS interface is integrated directly into the slide, giving this air pistol a more modern and adaptable setup for target shooting and training use. It also features a GLOCK-style Weaver accessory rail on the dust cover for fitting additional accessories.
Powered by a 12g CO₂ capsule housed within the 18-round all-in-one magazine, the GLOCK 17 Gen5 MOS produces velocities of up to 377 fps with an energy output of under 3.0 joules. The double action trigger, automatic trigger safety and additional manual sliding safety help deliver a secure and user-friendly shooting platform. With a weight of 683g and an overall length of 202mm, this is a well-balanced air pistol that captures the look and feel of the Gen5 original extremely well.
- Energy Level (E₀) Less than 3.0 joules
- Velocity (V₀) 115 m/s (377 fps)
- Calibre 4.5mm (.177) BB
- Power Source 1 x 12g CO₂ capsule
- Magazine Capacity 18 rounds
- Shot Capacity 120 rounds
- Trigger Double Action
- Safety Sliding Safety, Automatic Trigger Safety
- Overall Length 202mm
- Weight 683g
- Holster Type A
- OR-Type MOS 1
- Official GLOCK 17 Gen5 MOS styling for an authentic look and feel
- Modular Optic System (MOS) for mounting compatible red dot sights
- Optics-ready slide designed to accept adapter plates
- Compatible with Docter, Trijicon, C-More and Leupold footprint red dots via separate plates
- Metal blowback slide for added realism during shooting
- Full-size pistol format for authentic handling
- Large frame design that mirrors the original Gen5 platform
- Long sight radius to support natural aiming
- Integrated red dot mounting interface built into the slide
- GLOCK-style Weaver accessory rail on the dust cover
- Suitable for fitting additional accessories such as lights or lasers
- Realistic trigger safety inspired by the original GLOCK design
- Additional manual safety for added user control
- All-in-one magazine design for simple loading and operation
- Designed to deliver a modern tactical shooting experience
- Strong training and recreational appeal thanks to its realistic controls and layout
- Umarex Glock 17 Gen 5 MOS 18 Round Air Pistol (.177 / BB)
What type of ammunition does this air pistol use?
This pistol uses 4.5mm (.177) steel BBs.
How is the Umarex GLOCK 17 Gen5 MOS powered?
It is powered by a single 12g CO₂ capsule, which fits inside the magazine.
Does this air pistol have blowback?
Yes, it features a realistic blowback metal slide for a more authentic shooting experience.
Is this pistol full size?
Yes, this is a full-size air pistol with a larger frame and realistic handling.
Can I fit a red dot sight to this model?
Yes, this model features the Modular Optic System (MOS), which allows you to fit a compatible red dot sight using the correct adapter plate, sold separately.
What red dot footprints is it compatible with?
It is compatible with Docter, Trijicon, C-More and Leupold footprints when used with the appropriate adapter plates.
Does it have an accessory rail?
Yes, it has a GLOCK-style Weaver rail on the dust cover for mounting accessories such as a torch or laser.
How many BBs does the magazine hold?
The magazine holds 18 steel BBs.
Does the magazine also hold the CO₂ capsule?
Yes, it uses an all-in-one magazine that houses both the BBs and the 12g CO₂ capsule.
What kind of trigger does it have?
It has a double action trigger.
Does it have a safety?
Yes, it has both an automatic trigger safety and an additional manual sliding safety.
Is this a good option for training and target shooting?
Yes, its full-size design, blowback action and realistic controls make it a great choice for training and recreational target shooting.
Can this pistol be used with a holster?
Yes, this model is listed as Holster Type A.
Is the red dot plate included with the pistol?
No, the adapter plates for fitting a red dot sight are sold separately.
What makes this model different from a standard GLOCK 17 air pistol?
The main difference is the MOS optics-ready slide, which allows you to mount compatible red dot sights for a more modern setup.
- 12 month warranty