The harpoon tip of underwater weapon comprises a tip body with a threaded or other mounting system as well as one or more means for prey fixation. A striker is mounted on the tip body which has sharp peaks located at both ends of the striker, it is possible to flip the striker inside the body 180 degrees during hunting. The striker is made of a extremely strong hard alloy, substantially of tungsten carbide, titanium carbide or their combination, and the tip body is made of a heavy tungsten-based alloy.

The harpoon tip of underwater weapon comprises a tip body with a threaded or other mounting system as well as one or more means for prey fixation. A striker is mounted on the tip body which has sharp peaks located at both ends of the striker, it is possible to flip the striker inside the body 180 degrees during hunting. The striker is made of a extremely strong hard alloy, substantially of tungsten carbide, titanium carbide or their combination, and the tip body is made of a heavy tungsten-based alloy.

A arrow system embodying a glue-in configuration or screw-over configuration of broadhead to arrow shaft connection is provided. The glue-in configuration provides an externally threadless broadhead shank for slidably reception into the complementary and cross-sectionally coextensive lumen of the arrow shaft. The screw-over configuration provides a broadhead with female internal threading that operatively associates with male threading of an insert that interconnects the broadhead to the lumen of the arrow shaft.

A arrow system embodying a glue-in configuration or screw-over configuration of broadhead to arrow shaft connection is provided. The glue-in configuration provides an externally threadless broadhead shank for slidably reception into the complementary and cross-sectionally coextensive lumen of the arrow shaft. The screw-over configuration provides a broadhead with female internal threading that operatively associates with male threading of an insert that interconnects the broadhead to the lumen of the arrow shaft.

A arrow system embodying a glue-in configuration or screw-over configuration of broadhead to arrow shaft connection is provided. The glue-in configuration provides an externally threadless broadhead shank for slidably reception into the complementary and cross-sectionally coextensive lumen of the arrow shaft. The screw-over configuration provides a broadhead with female internal threading that operatively associates with male threading of an insert that interconnects the broadhead to the lumen of the arrow shaft.

A arrow system embodying a glue-in configuration or screw-over configuration of broadhead to arrow shaft connection is provided. The glue-in configuration provides an externally threadless broadhead shank for slidably reception into the complementary and cross-sectionally coextensive lumen of the arrow shaft. The screw-over configuration provides a broadhead with female internal threading that operatively associates with male threading of an insert that interconnects the broadhead to the lumen of the arrow shaft.

A broadhead blade impact energy transfer apparatus and method consisting of a support structure with a first end and a second end. A blade is rotatably attached with the support structure such that the blade is movable from a first position to a second position where the blade has a leading cutting edge and a trailing edge and a connection point and an extended tip and where the connection point is connected with the support structure. A pressure device is connected in the support structure where the pressure device is configured to pressure the connection point of the blade such that the blade is pressured toward the first end of the support structure and to the first position and to yield to force applied to the blade and enable the blade to move to the second position.

A broadhead blade impact energy transfer apparatus and method consisting of a support structure with a first end and a second end. A blade is rotatably attached with the support structure such that the blade is movable from a first position to a second position where the blade has a leading cutting edge and a trailing edge and a connection point and an extended tip and where the connection point is connected with the support structure. A pressure device is connected in the support structure where the pressure device is configured to pressure the connection point of the blade such that the blade is pressured toward the first end of the support structure and to the first position and to yield to force applied to the blade and enable the blade to move to the second position.

A suction dart target game system includes a throwing member with a central protrusion, and first and second throwing suction cups; and a target piece with a first target suction cup; such that the target piece is attached to a mounting structure, such that a user can throw the throwing member at the target piece from a distance, optionally such that the throwing member rotates in flight, such that either the first throwing suction cup or the second throwing suction cup attaches to the first or second target suction cup or to a surface area of the mounting structure adjacent to the target piece, if a throw is successful. Also disclosed is a suction dart target game method, including positioning a target piece, throwing a throwing member, and measuring a distance.

A suction dart target game system includes a throwing member with a central protrusion, and first and second throwing suction cups; and a target piece with a first target suction cup; such that the target piece is attached to a mounting structure, such that a user can throw the throwing member at the target piece from a distance, optionally such that the throwing member rotates in flight, such that either the first throwing suction cup or the second throwing suction cup attaches to the first or second target suction cup or to a surface area of the mounting structure adjacent to the target piece, if a throw is successful. Also disclosed is a suction dart target game method, including positioning a target piece, throwing a throwing member, and measuring a distance.