A fill station permits transferring a gas, such as a compressed gas from a second device to a first device. The fill station includes a body having an inlet, an inlet/outlet port and an outlet. The body has a passage extending between the inlet, the inlet/outlet port and the outlet. The passage includes a central passage portion. The body includes a bore therein in communication with the central passage portion. A valve assembly includes a seal, a seat, a ball and a biasing member mounted in the body at a first side of the central passage in communication with the inlet/outlet port and a seal, a seal support, and an actuator shaft positioned in the body on an opposite side of the central passage portion. Engagement of the actuator shaft with the ball moves the ball off of the seat to open flow communication from the inlet/outlet port to the outlet and disengagement of the actuator shaft from the ball moves the ball onto the seat to close flow communication from the inlet to the outlet. When the ball is on the seat to close flow communication from the inlet/outlet port to the outlet, flow is communicated from the inlet to the inlet/outlet port.

Air guns and non-firearm guns for conventional metal jacket bullets are provided. Novel chamber and throat geometries, novel barrel rifling schemes, barrel materials, and surface technology facilitate manufacture or retrofit of air guns and other non-firearm guns to use standard size metal jacket bullets manufactured for conventional firearms.

An improvised projectile checking housing assembly having latch button and first and second sidewalls with first and second catch apertures opening as a catch latch recess of elongated structure using an improvised projectile checking spring opening to receive a locking key structure based upon the projectile receiving opening to the improvised projectile checking housing assembly. Alternate rearward translating lock gauge at the backside of a dart drum uses a follower and engaging cam surfaces locking and unlocking a pathway for correct dart alignment. Alternate motorized, non-motorized and pneumatic structures are disclosed with apparatus launch operations moving between checking and non-checking positions.

A barrel catch of a toy gun has a barrel through hole with diameter larger than outer circumference of the barrel so that the barrel penetrates through hole center. The barrel catch includes a barrel fitting portion fitted/attached to the barrel on the inner circumference of the hole opposite to the pressing portion exposed from an opening in a barrel attachment portion of a toy gun body. The barrel catch is housed in a housing portion of the toy gun body slidably in the direction defined by the pressing portion and the opposite portion of the pressing portion. The barrel includes a barrel catch fitting portion fittable to the barrel fitting portion of the barrel catch upon penetration of the barrel through the barrel catch. The barrel slidably penetrates the barrel through hole of the barrel catch in the direction defined by the pressing portion and the opposite portion.

A barrel catch of a toy gun has a barrel through hole with diameter larger than outer circumference of the barrel so that the barrel penetrates through hole center. The barrel catch includes a barrel fitting portion fitted/attached to the barrel on the inner circumference of the hole opposite to the pressing portion exposed from an opening in a barrel attachment portion of a toy gun body. The barrel catch is housed in a housing portion of the toy gun body slidably in the direction defined by the pressing portion and the opposite portion of the pressing portion. The barrel includes a barrel catch fitting portion fittable to the barrel fitting portion of the barrel catch upon penetration of the barrel through the barrel catch. The barrel slidably penetrates the barrel through hole of the barrel catch in the direction defined by the pressing portion and the opposite portion.

Disclosed is a multi-barrel rotary toy machine gun powered by compressed liquefied gas, which relates to the technical field of a replica toy machine gun, comprising: a grip assembly (1), a gun body assembly (2), and a barrel assembly (3), which are successively connected, wherein a magazine assembly (4) for loading a plurality of BB balls (5) and continuously pushing the BB balls (5) into the gun body assembly (2) via an elastic thrusting device is inserted inwardly along an entrance of the gun body assembly (3). The internal space of the barrel assembly is sufficiently utilized, which innovatively reforms the space of the central barrel of the barrel assembly to a front-mount magazine and thus significantly increases the magazine space; as such, a considerable amount of BB balls may be loaded at a single time, which significantly improves user experience and increases fun of playing.

Disclosed is a multi-barrel rotary toy machine gun powered by compressed liquefied gas, which relates to the technical field of a replica toy machine gun, comprising: a grip assembly (1), a gun body assembly (2), and a barrel assembly (3), which are successively connected, wherein a magazine assembly (4) for loading a plurality of BB balls (5) and continuously pushing the BB balls (5) into the gun body assembly (2) via an elastic thrusting device is inserted inwardly along an entrance of the gun body assembly (3). The internal space of the barrel assembly is sufficiently utilized, which innovatively reforms the space of the central barrel of the barrel assembly to a front-mount magazine and thus significantly increases the magazine space; as such, a considerable amount of BB balls may be loaded at a single time, which significantly improves user experience and increases fun of playing.

An apparatus includes an energy source and an expansion structure. The energy source is configured to convey an amount of energy operable to increase a pressure of a compressible gas disposed in a chamber. The expansion structure is configured to be placed in fluid communication with the chamber and to receive a flow of the compressible gas in response to the increase in pressure. The expansion structure includes an inlet having a first diameter and an outlet having a second diameter greater than the first diameter and is configured to allow the compressible gas to expand as the compressible gas flows from the inlet to the outlet such that a supersonic free jet of the compressible gas exits the outlet. In some instances, the supersonic free jet of the compressible gas can accelerate, relative to the expansion structure, a projectile disposed outside of the expansion structure.

Airguns are provided. In one aspect, a shuttle having a breech bushing therein is moved between a cocking position where a projectile is loaded into a breach bushing channel and a firing position where the breech bushing channel is located between a port from which compressed air flows firing and a barrel opening into which the compressed air advances the projectile. The barrel has a barrel guide surface at the back barrel face, wherein the breech bushing has a shaped surface facing the barrel and wherein the breech bushing shaped surface and the barrel guide surface are configured to interact as the barrel is moved from the cocked position to the firing position to urge the breach insert to move within the shuttle passageway in a manner that reduces the extent of any misalignment between the breech bushing channel and the opening.

Airguns are provided. In one aspect, a shuttle having a breech bushing therein is moved between a cocking position where a projectile is loaded into a breach bushing channel and a firing position where the breech bushing channel is located between a port from which compressed air flows firing and a barrel opening into which the compressed air advances the projectile. The barrel has a barrel guide surface at the back barrel face, wherein the breech bushing has a shaped surface facing the barrel and wherein the breech bushing shaped surface and the barrel guide surface are configured to interact as the barrel is moved from the cocked position to the firing position to urge the breach insert to move within the shuttle passageway in a manner that reduces the extent of any misalignment between the breech bushing channel and the opening.