Description
Umarex / GHK Glock 45 Gen5 MOS GBB Gas Pistol (2.6476)
The Umarex / GHK Glock 45 Gen5 MOS is an officially licensed gas blowback airsoft pistol combining a compact-length slide with a full-size Glock Gen5 grip. Manufactured by GHK in Taiwan, the pistol features a CNC-finished aluminium slide, Cerakote surface treatment, a hammerless V2 striker firing system and an adjustable TDC hop-up. The MOS 3 optics mounting system also allows a compatible miniature red dot sight to be installed using a separately available adapter plate.
The Glock 45 combines the handling advantages of a shorter slide with the secure grip of a full-size frame. At just 185 mm long and approximately 504 g with the magazine installed, it is a lightweight and responsive choice for players who appreciate realistic GBB operation, official Glock markings and the familiar ergonomics of the Gen5 platform.
GHK V2 Striker Firing System and Gas Blowback
Unlike conventional gas blowback pistols with a traditional hammer mechanism, the GHK Glock 45 Gen5 MOS uses a hammerless, striker-based firing system. The design eliminates the resistance caused by a conventional hammer moving against the slide, helping the action cycle smoothly.
The pistol features GHK's updated V2 firing system, which incorporates improvements to the striker mechanism, trigger operation and gas delivery. Compared with the earlier system, the V2 design offers a lighter trigger pull and improved operating consistency.
A large one-piece cylinder produces a pronounced blowback impulse, while the lightweight slide supports responsive cycling. The updated V2 magazine output valve is designed to maintain consistent gas flow, and improvements to the magazine feed lips and hop-up interface help provide reliable BB feeding.
Cerakote-Finished Aluminium Slide and Gen5 Construction
The slide is manufactured from aluminium alloy and finished with CNC machining for precise dimensions and detailing. The slide, zinc-alloy outer barrel and MOS cover feature a Cerakote finish designed to improve surface wear resistance.
The reinforced polymer frame combines low weight with the familiar full-size Glock Gen5 grip. Its textured surface provides a secure hold, while the shorter slide makes the pistol convenient to handle in confined spaces.
Other external features include an ambidextrous steel slide stop, trigger safety, fixed front and rear sights and an accessory rail beneath the barrel for compatible pistol lights and other accessories.
MOS 3 Optics Mounting - Adapter Set 2.8500
The Umarex / GHK Glock 45 Gen5 MOS (2.6476) uses the MOS 3 optics mounting system. Installing a miniature red dot sight requires the separately available Umarex MOS 3 Adapter Plate Set (2.8500). The MOS 1 adapter set (5.8499) is not compatible with this model.
The MOS 3 adapter set contains four plates for different optic mounting footprints:
- Plate 01: Docter footprint, M3 screws
- Plate 02: Trijicon / RMR footprint, 6-32 UNC screws
- Plate 03: C-More footprint, 8-32 UNC screws
- Plate 04: Leupold footprint, M4 screws
The adapter plate must be selected according to the red dot sight's mounting footprint. The optic mounting screws must also have the correct thread, length and head shape for the selected plate and sight.
The pistol can also be used with its original front and rear sights when the MOS cover is installed. The red dot sight and MOS 3 adapter plate set are sold separately.
Adjustable V2 TDC Hop-Up
The Glock 45 Gen5 MOS features GHK's updated V2 TDC (Top Dead Center) hop-up system. The adjustment mechanism applies pressure centrally to the hop-up bucking, allowing the backspin to be fine-tuned for different BB weights and shooting conditions.
The V2 hop-up design also incorporates improvements to the BB feeding interface. Together with the updated magazine, it is designed to provide consistent feeding and a stable BB trajectory.
GHK Magazine Compatibility
The pistol is supplied with a 20-round GHK gas magazine featuring the updated V2 output valve. GHK V2 gas magazines are recommended for the best compatibility with the updated firing system.
The pistol is also compatible with GHK Glock 17 Gen3 and Gen5 gas magazines. Compatible GHK CO2 magazines are available, although reinforced steel slide, outer barrel and recoil spring components are recommended by the manufacturer's specialist distributor for CO2 use.
The GHK Glock platform uses its own internal design. Magazines and internal components intended for Glock airsoft pistols manufactured by VFC, Tokyo Marui, WE or other manufacturers should not be assumed to be compatible with this model.
Technical Specifications
- Brand and licence: Umarex / Glock
- Manufacturer: GHK, Taiwan
- Model: Glock 45 Gen5 MOS
- Manufacturer product number: 2.6476
- Product type: Gas blowback airsoft pistol
- Calibre: 6 mm BB
- Operating system: Gas blowback (GBB)
- Firing mode: Semi-automatic
- Firing mechanism: GHK V2 hammerless striker system
- Power source: Airsoft gas
- Recommended gas: Approximately 150 PSI airsoft gas, depending on operating conditions
- Magazine capacity: 20 rounds
- Magazine system: GHK Glock gas magazines, V2 recommended
- Hop-up: Adjustable V2 TDC
- Slide: CNC-finished aluminium alloy
- Outer barrel: Zinc alloy
- Surface treatment: Cerakote on slide, outer barrel and MOS cover
- Frame: Reinforced polymer
- Slide stop: Ambidextrous, steel
- Safety: Trigger safety
- Optics mounting system: MOS 3
- Compatible optic adapter set: Umarex 2.8500, sold separately
- Iron sights: Fixed front and rear sights
- Accessory rail: Integrated frame rail
- Overall length: 185 mm
- Inner barrel length: 80 mm
- Weight: Approximately 504 g with magazine
- Colour: Black
Package Contents
- 1 × Umarex / GHK Glock 45 Gen5 MOS GBB Gas Pistol - Black
- 1 × 20-round GHK gas magazine
Red dot sight, MOS 3 adapter plate set and airsoft gas are not included.