Airgun with pressurized chamber

Abstract

Aspects of the invention provide a pressurization structure for an airgun having an inner barrel 4 sequentially connected at its rear end to a coaxially aligned hop-up rubber 6 which is connected to a cylinder 7. The hop-up rubber 6 is provided with a through cavity for projectile 516 with protrusions extending radially from the inner wall of the cavity to press against the projectile 516. The cylinder 7 has a chamber connected to the cavity, wherein a rubber piston 8 is installed, forming a sealed space between the rear of the projectile 516 and the chamber interior. A cut-off valve 9 is arranged within this sealed space. The cylinder 7 is connected to a magazine 14 that supplies propellant gas and projectiles 516 into the chamber. When pressurized gas is released from the magazine 14, the pressurization within the chamber enables higher initial kinetic energy of the projectile 516.

Dependencies are inferred from the claim text.