Abstract: Devices, systems, and methods relating to a fishing spear and assembly thereof. In one embodiment, a fishing spear includes a fishing spear body and a centerline internal reinforcement assembly, at least a portion of the centerline internal reinforcement assembly being within the fishing spear body. In one embodiment, a method of assembling a fishing spear includes attaching a first end of a high-strength line to a nose cone at a forward end of the fishing spear device; passing one or more body tube(s) and connection element(s) over a second end of the high-strength line; coupling a rear fitting and rotatable nut to the second end of the high-strength line; and rotating the rotatable nut to apply tension to the high-strength line and to draw the nose cone and the rear fitting toward each other to provide rigidity to the fishing spear device.

Abstract: A device for spearfishing, which device may include a barrel including a first end and a second end, the barrel defining a spear conduit and two band conduits, the spear conduit and the two band conduits extending with the barrel from the first end to the second end. The spear conduit may be coaxial with the longitudinal axis of the barrel. The spear conduit may be located between the two band conduits, and each of the band conduits may be parallel to the spear conduit. The barrel may define a recessed groove, which may extend from the first end of the barrel to the second end of the barrel. The device may further include a handle or other accessories that are releasably engaged with the recessed groove. The device may further include band attachment means, such as a cone-shaped plug, for releasably coupling a band to the barrel.

Abstract: A device for spearfishing, which device may include a barrel including a first end and a second end, the barrel defining a spear conduit and two band conduits, the spear conduit and the two band conduits extending with the barrel from the first end to the second end. The spear conduit may be coaxial with the longitudinal axis of the barrel. The spear conduit may be located between the two band conduits, and each of the band conduits may be parallel to the spear conduit. The barrel may define a recessed groove, which may extend from the first end of the barrel to the second end of the barrel. The device may further include a handle or other accessories that are releasably engaged with the recessed groove. The device may further include band attachment means, such as a cone-shaped plug, for releasably coupling a band to the barrel.