An airgun pressure system as described herein includes a pressure chamber comprising a cylinder extending along a length of an axis of the airgun parallel with an axis of a barrel of the airgun. The airgun also includes a piston disposed within the pressure chamber and translatable along a length of the cylinder to pressurize gas in the pressure chamber in response to an increase in force applied to the piston. The airgun also includes a rotating drum connected to a frame of the airgun, a cable operably connected to the piston and the rotating drum, and a crank handle operably connected to the rotating drum and configured to cause rotation of the rotating drum to increase tension on the cable and force on the piston to compress the gas in the pressure chamber.

The present disclosure provides a method for charging an air gun using an onboard electric pump assembly mounted within the air gun. The method includes: activating the onboard electric pump assembly in response to an input from a user for setting a target air pressure value of an air tube assembly of the air gun; charging air, by the onboard electric pump assembly, into the air tube assembly of the air gun; and stopping the onboard electric pump assembly when a pressure in the air tube assembly reaches the target air pressure value.

The present disclosure provides a method for charging an air gun using an onboard electric pump assembly mounted within the air gun. The method includes: activating the onboard electric pump assembly in response to an input from a user for setting a target air pressure value of an air tube assembly of the air gun; charging air, by the onboard electric pump assembly, into the air tube assembly of the air gun; and stopping the onboard electric pump assembly when a pressure in the air tube assembly reaches the target air pressure value.

The present disclosure provides an air gun, including: an air tube assembly; an onboard electric pump assembly mounted within the air gun and connected to the air tube assembly, where the onboard electric pump assembly is configured to charge high-pressure air into the air tube assembly; a valve assembly configured to control air flow and pressure within the air tube assembly; a firing mechanism assembly operable by a user of the air gun; and an air release valve assembly located between the air tube assembly and the firing mechanism assembly. When the user operates the firing mechanism assembly, the air release valve assembly is automatically triggered by the firing mechanism assembly to release the high-pressure air in the air tube assembly to project pellets.

The present disclosure provides an air gun, including: an air tube assembly; an onboard electric pump assembly mounted within the air gun and connected to the air tube assembly, where the onboard electric pump assembly is configured to charge high-pressure air into the air tube assembly; a valve assembly configured to control air flow and pressure within the air tube assembly; a firing mechanism assembly operable by a user of the air gun; and an air release valve assembly located between the air tube assembly and the firing mechanism assembly. When the user operates the firing mechanism assembly, the air release valve assembly is automatically triggered by the firing mechanism assembly to release the high-pressure air in the air tube assembly to project pellets.

The present disclosure provides an onboard electric pump assembly for an air gun. The onboard electric pump assembly includes: a high-speed DC motor powered by a battery; a controller that is operable by a user through a user interface, where the controller is configured to control the high-speed DC motor, and a mounting structure to mount the high-speed DC motor within the air gun an air gun.

The present disclosure provides an onboard electric pump assembly for an air gun. The onboard electric pump assembly includes: a high-speed DC motor powered by a battery; a controller that is operable by a user through a user interface, where the controller is configured to control the high-speed DC motor, and a mounting structure to mount the high-speed DC motor within the air gun an air gun.

An airgun pressure system as described herein includes a pressure chamber comprising a cylinder extending along a length of an axis of the airgun parallel with an axis of a barrel of the airgun. The airgun also includes a piston disposed within the pressure chamber and translatable along a length of the cylinder to pressurize gas in the pressure chamber in response to an increase in force applied to the piston. The airgun also includes a rotating drum connected to a frame of the airgun, a cable operably connected to the piston and the rotating drum, and a crank handle operably connected to the rotating drum and configured to cause rotation of the rotating drum to increase tension on the cable and force on the piston to compress the gas in the pressure chamber.

An airgun pressure system as described herein includes a pressure chamber comprising a cylinder extending along a length of an axis of the airgun parallel with an axis of a barrel of the airgun. The airgun also includes a piston disposed within the pressure chamber and translatable along a length of the cylinder to pressurize gas in the pressure chamber in response to an increase in force applied to the piston. The airgun also includes a rotating drum connected to a frame of the airgun, a cable operably connected to the piston and the rotating drum, and a crank handle operably connected to the rotating drum and configured to cause rotation of the rotating drum to increase tension on the cable and force on the piston to compress the gas in the pressure chamber.

The present disclosure provides an onboard electric pump assembly for an air gun. The onboard electric pump assembly includes: a high-speed DC motor powered by a battery; a controller that is operable by a user through a user interface, where the controller is configured to control the high-speed DC motor, and a mounting structure to mount the high-speed DC motor within the air gun an air gun.