Description
Umarex / GHK Glock 17 Gen5 MOS GBB Gas Pistol (2.6475)
The Umarex / GHK Glock 17 Gen5 MOS is an officially licensed gas blowback airsoft pistol combining authentic Glock Gen5 styling with GHK's distinctive hammerless firing mechanism and MOS 3 optics mounting system. Its CNC-finished aluminium slide, Cerakote surface treatment, adjustable TDC hop-up and lightweight construction make it an interesting choice for players looking for a realistic and responsive GBB pistol.
Manufactured by GHK in Taiwan, the pistol features official Glock markings, a reinforced polymer frame and familiar Gen5 controls. Despite its metal slide, the pistol weighs approximately 505 g with the magazine installed, making it noticeably lighter than many conventional metal-slide GBB pistols.
GHK Hammerless Firing System and Gas Blowback
Unlike conventional GBB pistols that use a traditional hammer mechanism, the GHK Glock 17 Gen5 MOS features a patented hammerless, striker-based firing system with steel components. Eliminating the traditional hammer's resistance against the slide helps the action cycle smoothly and reduces unnecessary friction.
A large one-piece cylinder produces a pronounced blowback impulse, while the lightweight moving components support responsive cycling. The result combines a distinctive mechanical trigger feel with the characteristic slide movement of a gas blowback pistol.
The slide is manufactured from aluminium alloy and CNC-finished for precise dimensions and detailing. The slide, zinc-alloy outer barrel and MOS cover feature a Cerakote finish that improves surface wear resistance. Steel ambidextrous slide stop levers and the reinforced polymer frame complete the construction.
MOS 3 Optics Mounting - Adapter Set 2.8500
The Umarex / GHK Glock 17 Gen5 MOS (2.6475) 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 plates are sold separately.
Adjustable TDC Hop-Up and Gen5 Ergonomics
The adjustable TDC (Top Dead Center) hop-up system allows the backspin applied to the BB to be fine-tuned for different BB weights and shooting conditions. The system applies pressure centrally to the hop-up bucking, helping maintain a consistent BB trajectory.
The full-size Gen5-style frame provides familiar Glock ergonomics, an integrated accessory rail, an ambidextrous slide stop and a reversible magazine release. The pistol also features a trigger safety and semi-automatic operation.
GHK Magazine Compatibility
The pistol is supplied with a 20-round GHK gas magazine. It is also compatible with GHK Glock 17 Gen3 gas and CO2 magazines, providing additional magazine options for different operating conditions.
GHK uses a proprietary internal system. Magazines and internal components intended for Glock airsoft pistols manufactured by VFC or other manufacturers should not be assumed to be compatible with this model. The same applies to parts intended for other Umarex Glock 17 Gen5 variants.
Technical Specifications
- Brand and licence: Umarex / Glock
- Manufacturer: GHK, Taiwan
- Model: Glock 17 Gen5 MOS
- Manufacturer product number: 2.6475
- Product type: Gas blowback airsoft pistol
- Calibre: 6 mm BB
- Operating system: Gas blowback (GBB)
- Firing mode: Semi-automatic
- Firing mechanism: Hammerless striker-based system
- Power source: Airsoft gas
- Recommended gas: Approximately 150 PSI high-pressure airsoft gas, depending on operating conditions
- CO2 compatibility: With compatible GHK CO2 magazines
- Muzzle velocity: Approximately 95 m/s with a 0.20 g BB
- Magazine capacity: 20 rounds
- Hop-up: Adjustable 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
- Optics mounting system: MOS 3
- Compatible optic adapter set: Umarex 2.8500, sold separately
- Iron sights: Front and rear sights
- Inner barrel length: Approximately 95 mm
- Weight: Approximately 505 g with magazine
- Colour: Black
Package Contents
- 1 × Umarex / GHK Glock 17 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.