A tubular assembly for attaching accessories to gun barrels. The assembly includes a first tubular, including first interior threads on an interior surface thereof and a collet on a first end thereof. The assembly includes a second tubular, including first exterior threads on an exterior surface thereof. The first exterior threads mate with the first interior threads. The second tubular includes a ridge of knurls on the exterior surface thereof. The ridge of knurls is adapted to frictionally engage the collet when the first tubular and the second tubular are assembled.

A tubular assembly for attaching accessories to gun barrels. The assembly includes a first tubular, including first interior threads on an interior surface thereof and a collet on a first end thereof. The assembly includes a second tubular, including first exterior threads on an exterior surface thereof. The first exterior threads mate with the first interior threads. The second tubular includes a ridge of knurls on the exterior surface thereof. The ridge of knurls is adapted to frictionally engage the collet when the first tubular and the second tubular are assembled.

The disclosed magazine cap choke adapter allows a user to store an extra choke in place of the shotgun magazine cap. The magazine cap choke adapter is formed from a body that includes a first female threaded end, or proximal end, that threads onto the magazine adapter of the shotgun. Moving away from the proximal end, the magazine cap choke adapter tapers to a second female threaded end, or distal end, into which a choke is optionally threaded.

The disclosed magazine cap choke adapter allows a user to store an extra choke in place of the shotgun magazine cap. The magazine cap choke adapter is formed from a body that includes a first female threaded end, or proximal end, that threads onto the magazine adapter of the shotgun. Moving away from the proximal end, the magazine cap choke adapter tapers to a second female threaded end, or distal end, into which a choke is optionally threaded.

A tubular assembly for attaching accessories to gun barrels. The assembly includes a first tubular, including first interior threads on an interior surface thereof and a collet on a first end thereof. The assembly includes a second tubular, including first exterior threads on an exterior surface thereof. The first exterior threads mate with the first interior threads. The second tubular includes a ridge of knurls on the exterior surface thereof. The ridge of knurls is adapted to frictionally engage the collet when the first tubular and the second tubular are assembled.

A tubular assembly for attaching accessories to gun barrels. The assembly includes a first tubular, including first interior threads on an interior surface thereof and a collet on a first end thereof. The assembly includes a second tubular, including first exterior threads on an exterior surface thereof. The first exterior threads mate with the first interior threads. The second tubular includes a ridge of knurls on the exterior surface thereof. The ridge of knurls is adapted to frictionally engage the collet when the first tubular and the second tubular are assembled.

A bullet decelerator for a toy gun. In one embodiment, there is provided a bullet decelerator for a toy gun comprising: a first housing having a first outlet, a second housing having a second outlet formed on one end of the second housing, wherein the second housing is screw-coupled to the first housing, and an elastic ring disposed within the first housing. The elastic ring is configured to maintain or reduce speed of the bullet discharged from the second outlet. The first housing includes a first cover unit having the first outlet and a second cover unit integrally connected to the first cover unit configured to accommodate the elastic ring therein. A first screw thread is formed on at least a portion of an inner circumferential surface of the second cover unit, and the first screw thread is configured to couple the first housing and the second housing.

A gun barrel that has a proximal chamber end, a distal muzzle end, and an internal bore bounded by a bore wall where the internal bore has a cartridge chamber at the proximal chamber end of the barrel, a first rifled bore section distal to the cartridge chamber, a second rifled bore section at the distal muzzle end of the barrel, and a reducing section distal to the first rifled bore section and connecting the first rifled bore section and the second rifled bore section.

A bullet decelerator for a toy gun. In one embodiment, there is provided a bullet decelerator for a toy gun comprising: a first housing having a first outlet, a second housing having a second outlet formed on one end of the second housing, wherein the second housing is screw-coupled to the first housing, and an elastic ring disposed within the first housing. The elastic ring is configured to maintain or reduce speed of the bullet discharged from the second outlet. The first housing includes a first cover unit having the first outlet and a second cover unit integrally connected to the first cover unit configured to accommodate the elastic ring therein. A first screw thread is formed on at least a portion of an inner circumferential surface of the second cover unit, and the first screw thread is configured to couple the first housing and the second housing.

A system includes a variable choke coupled to a barrel of a shot gun, and a mechanical mechanism coupled to the variable choke and configured to adjust an amount of choke constriction of the variable choke. The system further includes a motor coupled to the mechanical mechanism, and a control system configured to determine a desired size of a shot cone of shot fired from the shot gun, determine a choke constriction position of the variable choke that produces the identified size of the shot cone, and apply control signals to the motor to cause, via movement of the mechanical mechanism, automatic adjustment of the variable choke based on the determined choke constriction position of the variable choke.