A speargun and speargun components are disclosed allowing for rapid reloading of the spear, and retaining the spear in the gun with an open track and retention mechanism. A spear retention mechanism is also disclosed, which may be integral with the speargun or interchangeable for different size spears. A phospholuminescent sighting track on one or both sides of the top of the speargun is also disclosed whereby the illuminated portion of the speargun provides a visual sight for a spear once inserted into the track. An interchangeable system of speargun retention mechanisms is also provided.

A speargun and speargun components are disclosed allowing for rapid reloading of the spear, and retaining the spear in the gun with an open track and retention mechanism. A spear retention mechanism is also disclosed, which may be integral with the speargun or interchangeable for different size spears. A phospholuminescent sighting track on one or both sides of the top of the speargun is also disclosed whereby the illuminated portion of the speargun provides a visual sight for a spear once inserted into the track. An interchangeable system of speargun retention mechanisms is also provided.

The speargun for underwater fishing comprises a spear, a hollow hand grip having therewithin a retaining mechanism for retaining the spear, a snap trigger of the retaining mechanism for the release of the spear, a hollow barrel fixed to the hand grip, a terminal head fixed to the barrel and supporting at least one lateral pulley on which a rubber band for the propulsive thrust of the spear is wound, and a housing for engaging one end of the rubber band, formed in a single piece with a wall of the hand grip and located in a transversal geometric plane of the speargun which includes the axis of the barrel and cuts the speargun into an upper half-part and a lower half-part.

The current invention relates to systems, apparatus, and methods that allow the forces from elastic elements to create inward, rather than outward, forces, on a base object such as a speargun base or stock. The invention discloses systems, apparatus, and methods for attaching elastic elements (also called bands or power bands) onto the stock in a manner that reduces or eliminates undesirable outward and rearward forces on that stock. While applicable in many contexts, the invention is particularly useful as a way to attach elastic bands to a speargun.

The current invention relates to systems, apparatus, and methods that allow the forces from elastic elements to create inward, rather than outward, forces, on a base object such as a speargun base or stock. The invention discloses systems, apparatus, and methods for attaching elastic elements (also called bands or power bands) onto the stock in a manner that reduces or eliminates undesirable outward and rearward forces on that stock. While applicable in many contexts, the invention is particularly useful as a way to attach elastic bands to a speargun.

The projectile launcher includes a riser base, an elongate barrel assembly attached to the riser base, a crank mechanism attached to the back of the barrel assembly, a trigger assembly, and an internal bow assembly mounted to the riser base. The crank assembly includes a rotatable crank for selective reciprocation of a cocking carriage riding inside a rail system in the barrel assembly. The cocking carriage selectively engages a projectile nock carriage riding within the rail system to push the nock carriage into a cocked position. The internal bow assembly includes vertically spaced upper and lower resilient bow arms and a system of pulleys and cables interconnecting the bow arms and the nock carriage. Cocking to the nock carriage flexes the bow arms in preparation for placement and firing of a projectile. The working components of the projectile launcher are enclosed by a covering to protect the user.

The current invention relates to systems, apparatus, and methods that allow the forces from elastic elements to create inward, rather than outward, forces, on a base object such as a speargun base or stock. The invention discloses systems, apparatus, and methods for attaching elastic elements (also called bands or power bands) onto the stock in a manner that reduces or eliminates undesirable outward and rearward forces on that stock. While applicable in many contexts, the invention is particularly useful as a way to attach elastic bands to a speargun.

The current invention relates to systems, apparatus, and methods that allow the forces from elastic elements to create inward, rather than outward, forces, on a base object such as a speargun base or stock. The invention discloses systems, apparatus, and methods for attaching elastic elements (also called bands or power bands) onto the stock in a manner that reduces or eliminates undesirable outward and rearward forces on that stock. While applicable in many contexts, the invention is particularly useful as a way to attach elastic bands to a speargun.

The current invention relates to systems, apparatus, and methods that allow the forces from elastic elements to create inward, rather than outward, forces, on a base object such as a speargun base or stock. The invention discloses systems, apparatus, and methods for attaching elastic elements (also called bands or power bands) onto the stock in a manner that reduces or eliminates undesirable outward and rearward forces on that stock. While applicable in many contexts, the invention is particularly useful as a way to attach elastic bands to a speargun.

The current invention relates to systems, apparatus, and methods that allow the forces from elastic elements to create inward, rather than outward, forces, on a base object such as a speargun base or stock. The invention discloses systems, apparatus, and methods for attaching elastic elements (also called bands or power bands) onto the stock in a manner that reduces or eliminates undesirable outward and rearward forces on that stock. While applicable in many contexts, the invention is particularly useful as a way to attach elastic bands to a speargun.