Golo Airsoft does a customization and performance enhancement of the VFC H&K VP9 CO2 Gas Blowback (GBB) airsoft pistol. The airsoft gun is a licensed replica of the modern H&K VP9, a real steel striker-fired handgun known for its ergonomics and operability. He details specific custom modifications and adjustments intended to optimize the airsoft pistol's functional performance, such as its gas blowback cycle, feel, and consistency.