The Crown Model Walther P99, an air-cocking airsoft handgun designed for ages 10 and up. Mach Sakai highlights the gun's features, including its 15-round magazine, lightweight build at 239g, and an affordable price of 4,160 yen. He shows the gun's operations, such as its manual safety and light trigger pull, and a test of its accuracy and velocity, concluding by stating that the gun is easy to use and enjoyable, particularly mentioning the slide stop feature.