Hungarian Gestamen Arms G9 HSP: Hammer and Striker in One Pistol
At Enforce Tac 2026, the Hungarian manufacturer Gestamen Arms showed their G9 HSP, a semi-automatic pistol built around a modular fire-control concept that allows users to switch between different operating systems within the same platform. Chambered in 9×19mm, the G9 HSP’s defining feature is its interchangeable firing mechanism. The pistol can be configured as either striker-fired or hammer-fired by swapping internal components, a process that can be completed quickly and without specialized tools.
This approach gives users the option to tailor trigger characteristics and handling to specific preferences or mission requirements. The trigger pull for the hammer configuration is 5,000 (11lbs) grams for double action, and 2,500 grams (5.5lbs) for the single action.
Both configurations operate with a shared control layout that includes a combined safety and decocker system. The design also allows for repeated trigger pulls in the event of a light primer strike, offering functionality similar to double-action operation even in striker-fired mode.
The pistol uses a polymer frame with steel internal components and follows a modern service pistol layout, including accessory rail capability, optics compatibility, and ambidextrous controls. It feeds from widely available Glock-pattern magazines, simplifying logistics and magazine sourcing.
To see this conversion live was quite interesting, and I have done my best to try to catch the steps below.
From a design standpoint, the G9 HSP was developed in response to requirements from Hungarian defense authorities, with an emphasis on adaptability and domestic production. The platform has reportedly undergone military testing and evaluation, including endurance trials. I was told it had been adopted by Hungarian forces, however, it seems it’s still undergoing trials.
And now the Gestamen Arms G9 HSP has been configured to be a double-action / single-action pistol, in well under 60 seconds.
While additional calibers such as .40 S&W and .45 ACP are said to be under development, the current focus remains on the 9mm variant.
The G9 HSP represents a different approach in the modern handgun market, combining multiple operating systems into a single, modular platform rather than requiring separate firearms for each configuration. While it’s really interesting to see this kind of conversion, I’m not sure about the need for this possibility.
Since its establishment in 2017, the company has developed a family of firearms comprising a pistol, submachine gun, assault rifle, light machine gun, battle rifle, machine gun, and grenade launcher. These systems are said to meet the requirements of the Hungarian Defence Forces.
In the stand at Enforce Tac were also the G224 LMG Light Machine Gun (for 5.56 NATO) and the G762MG Machine Gun (for 7.62 NATO). More about those in another article.
What do you think about a pistol that combines both hammer-fired and striker-fired mechanisms in a single design?
The company’s website is: https://www.gestamen.eu/
Ex-Arctic Ranger. Competitive practical shooter and hunter with a European focus. Always ready to increase my collection of modern semi-automatics, optics, thermals and suppressors. TCCC Certified. Occasionaly seen in a 6x6 Bug Out Vehicle, always with a big smile.
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Someone in Hungary got a license to produce cz p09s…I guess these were those guys.
P09 with little FNP sprinkled in
I imagine this would sell on the civilian market (woohoo convertible!), but the military isn't going to let their soldiers pick the action, right? Unless the different branches of the Hungarian military have irreconcilable differences concerning hammers, why go to the extra effort?