Abstract: The present invention generally relates to a lighted archery nock. The lighted archery nock generally includes an accelerometer, a replaceable battery, a light, a housing, and a microprocessor that controls illumination of the light. The microprocessor can control the timing of the light to save battery life and respond to user input transmitted by tapping the nock to re-set the light. The housing is configured with a plurality of fingers that interact with the replaceable battery to hold it in place.

Abstract: A tracking system and associated methods for locating animals, such as wounded/downed game animals or non-game animals such as research animals, and/or projectiles configured to be shot at an animal are disclosed. The system includes a transmitter and one or more radio frequency reflectors that are coupled to a projectile. After the projectile is shot, a user utilizes the transmitter to locate the reflector. In some cases, the reflector is integrally coupled to the projectile to allow the user to locate the projectile. In other cases, the reflector is selectively coupled to the projectile so as to be removed from the projectile and attached to the animal when the projectile hits the animal. In such cases, the user may use the transmitter to locate the animal. In still other cases, at least one reflector is integrally coupled to the projectile while another is selectively coupled to the projectile. Accordingly, the user can locate the projectile and the animal.

Abstract: The present invention generally relates to a lighted archery nock. The lighted archery nock generally includes an accelerometer, a replaceable battery, a light, a housing, and a microprocessor that controls illumination of the light. The microprocessor can control the timing of the light to save battery life and respond to user input transmitted by tapping the nock to re-set the light. The housing is configured with a plurality of fingers that interact with the replaceable battery to hold it in place.

Abstract: The present invention is a toy projectile launcher in the form of a role play accessory such as a belt. The belt assembly includes a strap, a launcher housing, and projectiles stored on the belt strap. The belt strap feeds through the launcher housing so that projectiles may be launched from the strap. In one embodiment the launcher is hand-held, and includes a handle which serves both as a means for holding the launcher during operation and as a power switch for the launcher. Projectiles may be discharged singly from the launcher or continuously in a rapid-fire mode.

Abstract: Adaptors for mounting arrowheads to arrow shafts are disclosed. Example embodiments include an outer attachment portion that engages the outer surface of a hollow arrow shaft, and an inner attachment portion that engages the inner surface of the hollow arrow shaft. Other embodiments may include single-piece adaptors configured to receive the end of a hollow arrow shaft, and adaptors with arrowhead receiving portions. Still other embodiments may include an inner attachment portion that is inserted into the hollow of a hollow arrow shaft and an outer attachment portion that surrounds and receives the outer surface of the hollow arrow shaft.

Abstract: An archery arrow carries a light transmitting nock plus a light assembly, which comprises a light source positioned so that the light source is visible through the nock, a switch having normally open electrical contacts, and closable upon momentary contact with a magnetic field, and circuitry interconnecting a battery, the switch, and the light source for permitting illumination of the light source when the magnetic field is sensed. By this invention, the light assembly may be free of a housing and occupies a first bore of the nock and a second bore of the arrow shaft rearward end. A unique system for retaining a battery and protecting against high G force, plus a focused beam LED are other optional, advantageous features.

Abstract: A bowhunting tracking-assist device on an arrow's shaft includes a tracer agent and an agent dispenser. The dispenser releases the agent when the arrow strikes a game animal, and the released agent identifies an enhanced-visibility trail of the fleeing animal. In an example embodiment, the dispenser has wells for holding the agent and a cover that displaces to release the agent when the arrow drives into the animal. The tracer agent preferably comprises one or more compounds that produce visible light to the naked eye and/or under a black light source. Example tracer agents include biological stains that produce visible light upon contact with blood, luminol or another chemiluminescent compound that releases light by a chemical reaction such as may occur when contacting blood, a basic salt such as sodium carbonate or another effervescence-inducing agent, a phosphorescent compound, or a fluorescent compound.

Abstract: An apparatus is configured for inclusion in an arrow, where the apparatus includes a device configured to provide feedback to a user concerning the arrow shot from a bow, and a processor coupled to the device, the processor configured to control an operation of the device at least during a flight of the arrow.

Abstract: A rear mounted penetration limiter for bow-fired projectiles for use in combination with a projectile and a nock, wherein said projectile is an arrow or a crossbow bolt, said penetration limiter comprising an attachment component, a nock securing component, and an engagement component having one or more engagement members, with said penetration limiter suitably adapted to limit the penetration of the projectile through a game animal once the front end of the projectile has struck and passed through the game animal, thereby allowing the creation of an exit wound while retaining the projectile within the game animal. In one embodiment the penetration limiter is adapted to detach from the projectile, remaining secured thereto by a short tether, thereby allowing the detached penetration limiter to reorient itself within the game animal to create greater drag on the projectile.

Abstract: An arrow fletching system has at least one vane or feather that is helically shaped. The helical vane or feather makes a sharp deviation of at least one-eighth, but no more than one-fourth (¼) of an inch from the longitudinal axis of the arrow shaft. The helical vane or feather improves the flight of the arrow by reducing the amount of sound emitted during flight. Additionally, the helical vane or feather causes a high rate of rotation of the arrow during flight to increase the stability during flight, thereby enabling increased accuracy and increasing the rate of speed of the arrow. Also, the helical vane or feather provides an improved surface and shape for the user to grasp, thereby enhancing the overall effectiveness of the arrow.

Abstract: A combined range and tag finder for determining distances to objects in an environment is described. Such a combined range and tag finder includes a system for determining distances to objects on a golf course and for finding golf balls for use with a system for finding golf balls. In the case of one exemplary integrated device, the device has at least two receivers, one to receive an RFID signal from the golf ball, another to receive a signal for positioning of the device location. At least one processor is coupled to both the receivers and can determine at least a direction and/or distance of the device from an object on the golf course. Other embodiments of a combined range and tag finder are also described.

Abstract: A fletching system and method that allows for quick and easy attachment of a fletching member to an arrow shaft provides a slotted arrow shaft adapted to receive a fletching member projecting therethrough and an internal plug member disposed within a hollow center of the arrow shaft in pressing frictional fit engagement with a flanged base portion of the fletching member wherein the flanged base portion is secured between the plug member and an internal surface of a sidewall of the arrow shaft.

Abstract: An arrow apparatus is disclosed comprising an arrow point alignment structure having a tapered leading end disposed on an outer surface of an arrow shaft. The arrow point may also comprise a tapered aperture defined therein for receiving and mating with at least a portion of the tapered leading end of the arrow point alignment structure in order to bring the arrow point into axial alignment with the arrow shaft. The arrow point alignment structure may be integrally formed with, or affixed to, the outer surface of the arrow shaft or affixed to a portion of the arrow point. The arrow apparatus may also further comprise an insert at least partially disposed within the arrow shaft. The insert may comprise a first insert portion removably attached to a second insert portion that weighs less than the first insert portion. Various arrow points and corresponding methods are also disclosed.

Abstract: The invention involves an arrow system having a shaft having a first end and an insert receptive of a standard point, the insert being disposed completely within the first end of the shaft. An insert installation tool may be used as part of the invention to facilitate insertion of the insert into the first end of the shaft. The invention further includes a reduced diameter hunting arrow shaft that maintains sufficient spine and weight characteristics. The reduced diameter hunting arrow shaft is receptive of standard or non-standard internal components for increasing arrow penetration and shot accuracy. Still further, the invention includes an arrow tip assembly including a male insert and a female point to assist in aligning points with arrow shafts.

Abstract: An expanding, exposed-blade arrow head and a method of its operation. In a preferred embodiment, the arrow head comprises: a ferrule comprising three blade holders and having a longitudinal cavity having a bottom; a tip comprising a piston that is slidably mounted in said longitudinal cavity, said tip having a front end having three slots; three blades, each of said blades having a forward end that is pivotably mounted in one of said slots and a body having a cutting edge, each said body being slidably mounted in one of said blade holders; wherein the sliding of said piston in said longitudinal cavity toward said bottom causes said cutting edges to move outward.

Abstract: A sporting good item or other product includes a “shrink-label” formed from a shrink-sleeve, shrink-wrap, or a stretch-sleeve adhered to or otherwise affixed to an outer surface of the item. The shrink-label includes pre-printed graphics and closely conforms to the item's outer surface, including any contours or tapered regions, so that the graphics may be displayed anywhere on the item. The shrink-label may optionally be applied to the item via an automated device. A clear coat or other protective layer may optionally be applied to an outer surface of the shrink-label to increase its durability and resistance to abrasion, which is particularly beneficial when the shrink-label is applied to an item intended for impact applications, such as a ball bat.

Abstract: The present invention relates to a sucker and an adhesion arrow having the same. More particularly, the present invention provides a sucker that can be attached, instead of a needle, to an arrow for a toy arrow shooter. The sucker of the present invention is formed with an annular projection on an adhesion surface of the sucker. Thus, even when the sucker collides against a target at a high speed, the sucker can be prevented from bouncing back from the target due to a repulsive force generated from the collision and thus securely adhere to the target. Further, even though the sucker of the present invention flies and collides against the target at a certain angle, the sucker can easily adhere to the target. Further, the sucker is made of a soft material so that a repulsive force can be smaller than an adhesion force when the sucker collides against the target.

Abstract: A dart barrel comprising a body, a surface on the body; and a coating deposited on the surface by physical vapor deposition, said coating comprising a layer of titanium, aluminum and nitride, whereby the dart barrel has improved hardness and wear resistance. The body is metal and the coating on the surface of the body has a thickness of between about 1.5 ?m and about 5.0 ?m. In one embodiment, the coating is a mono-layer coating. In another embodiment, the coating is a multi-layer coating.

Abstract: A reinforced archery arrow shaft includes a tubular core, with an attached two-part sleeve either covering the core, or disposed inside the core as a liner. The core may include carbon therein. The sleeve includes at least one higher-density front section formed from a fabric material, which is wrapped around and affixed to the core. The sleeve also includes a lower-density rear section wrapped around and affixed to the core behind the front section. The sleeve fabric may have a decorative design or pattern on the exterior surface thereof. The higher density of the front section provides front-of-center weight distribution in the finished arrow shaft. Optionally, accessories may be attached to the arrow shaft to form an arrow.

Abstract: In the field of archery, draw length adjustment is currently accomplished by interchangeable cams or cam adjustment while the handgrip remains fixed. To accommodate for shorter draw lengths, smaller cams are used which can reduce arrow velocity and overall bow performance. The Great Equalizer is a riser system that can be incorporated into any archery bow design and consists of various fixed positions that utilizes a movable handgrip that can be locked in place at any of the positions to compensate for the bow user's draw length without having to adjust the cams that can inhibit a bow's performance.

Abstract: A scent dispersing arrow having a field tip, a shaft, a tail end, and a chamber in the shaft. The field tip allows the scent dispersing arrow to easily penetrate and remain standing in the ground. The shaft has two parts, separable at a point on the shaft that contains the chamber. The chamber has a plurality of holes in a portion of its wall that allow a scent contained within to disperse into the air only when a scent stick moves from the tapered end of the chamber to the section containing the holes, upon impact of the arrow with the ground. The tail end of the shaft contains a plurality of feathers or vanes which stabilize the scent arrow during flight. The chamber spans from a short length in the front part of the shaft to a tapered end in the back part of the shaft near the tail section. A solid scent holding stick within the chamber will disperse a scent into the air through the plurality of holes in the chamber walls.

Abstract: An improved arrow and sliding stabilizer therefor are provided. The sliding stabilizer is used for stabilizing arrow flight, instead of fixed or glued tail feathers, vanes or other fletching. The invention improves current projectile technology with reduced assembly labor cost, the elimination of bow clearance issues, improved accuracy with the consistent production of the sliding stabilizer, easy replacement of the stabilizer in the field, and improved arrow storage. A sliding stabilizer is designed to slide along the shaft of an arrow and comprises an annular wing and a plurality of fins. In use, the stabilizer is positioned at the front of the arrow prior to launch, and the arrow slides quickly through the stabilizer until secured at a stop position at or near the trailing end of the arrow.

Abstract: A game finder which facilitates finding of an arrow after it is shot is disclosed. The game finder includes an arrow and at least one transmitting module provided on the arrow for emitting a recovery signal when the arrow strikes game or a target.

Abstract: An arrow sight is shown. The arrow sight includes a coupling portion for attachment to an arrow. The arrow sight also includes a targeting portion attached to the coupling portion. The targeting portion includes an aiming guide used to assist an archer in aiming the arrow.

Abstract: A broadhead adapter is comprised of a collar and at least one broadhead blade. The collar is adapted to receive the stud of an adjustable weight broadhead adapter bolt through an opening. The collar is adapted to securely fit between an end of an arrow shaft and the shoulder of the bolt. Each blade is attached to the collar to form an arrowhead configuration. The adjustable weight bolt is comprised of a threaded stud, a shoulder, a boss and at least one weight. The threaded stud screws into the arrow shaft to secure a broadhead adapter to it. One or more weights are attached to the bolt to incrementally increase the effective weight of the arrowhead. An arrow having an adjustable weight broadhead arrowhead may be formed by securing a broadhead adapter between the shoulder of an adjustable weight broadhead adapter bolt and the threaded opening of an arrow shaft.

Abstract: An arrow is provided with a light emitting function, a nock with a light emitting function, and a light emission control device to be used in an arrow which thereby realize accurate and stable light emission periods of time and a reduction in size and weight of light emitting members by using an electronic circuit with an acceleration sensor switch in its light emission control part. The control device includes an acceleration switch, a capacitor circuit including a capacitor and a resistor, and an electrical circuit installed inside the arrow, nock, or attachable to and detachable from the arrow. Electricity is applied when the arrow is discharged from a bow to emit light for a set period of time.

Abstract: An assembly for tracking an animal which has been shot by an arrow. A shank portion of an arrow is received in a bushing which in turn receives a housing for a transmitter. The housing is retained on the bushing during arrow flight by an elastomeric ring. Upon impact of the arrow with the animal, the elastomeric ring is dislodged, releasing the housing from the bushing. Associated with the housing are members which penetrate the animal to attach the housing to the animal. A hand-held direction finding receiver receives signals from the transmitter so that direction to the animal is determined.

Abstract: Vibration dampening devices for arrows are installed in the arrow point end of the arrow shaft or in the nock end of the shaft or in both of those ends. These devices: (a) are fabricated from elastomeric materials; (b) have an elongated core surrounded by one or more annular, vibration dampening elements; and (c) employ decay time modification to attenuate shock and vibration. The devices are assembled in axially aligned relationship to an arrow point insert or arrow nock, and coupling features insure a positive connection between the dampening device and the arrow point insert or nock to which a device is assembled.

Abstract: The invention involves an arrow system having a shaft having a first end and an insert receptive of a standard point, the insert being disposed completely within the first end of the shaft. An insert installation tool may be used as part of the invention to facilitate insertion of the insert into the first end of the shaft. The invention further includes a reduced diameter hunting arrow shaft that maintains sufficient spine and weight characteristics. The reduced diameter hunting arrow shaft is receptive of standard or non-standard internal components for increasing arrow penetration and shot accuracy. Still further, the invention includes an arrow tip assembly including a male insert and a female point to assist in aligning points with arrow shafts.

Abstract: An electronically-scored game comprises an electronic controller and at least one sensor operatively connected with the controller, the at least one sensor adapted to detect at least one activity associated with the game and to generate a signal. A memory stores information corresponding to a plurality of audible recordings, the memory operatively connected with the controller. A sound generator is operatively connected with the controller. A speaker is operatively connected with the sound generator. Upon detection of the at least one activity associated with the game, the signal from the sensor activates the controller to cause at least one of the plurality of audible recordings to be selected and played by the sound generator through the speaker.

Abstract: A dart includes a dart barrel, a shaft having a sliding end portion, and a dual action arrangement. The dart barrel has a head portion and a shaft channel coaxially extending at the head portion, and defining a head opening at the head portion to communicate with the shaft channel. The dual action arrangement includes a tubular shaft housing detachably mounted at the head opening of the dart barrel, wherein the shaft housing has a sliding slot coaxially aligning with the shaft channel for the a sliding end portion of the shaft sliding therealong. The tubular elastic element is coaxially mounted at the sliding end portion of the shaft for applying an urging force against an inner circumferential wall of the sliding slot so as to minimize a clearance between the sliding slot and the sliding end portion of the shaft.

Abstract: An arrow nock and release system for holding and then releasing an arrow from a bow wherein a ball nock is positioned on an end of an arrow shaft, the ball nock having an at least partially spherical outer surface divided with a string groove. An arrow release is engageable with the ball nock and includes a jaw with an engagement surface corresponding with the outer surface of the ball nock, the jaw releaseably engageable with the ball nock.

Abstract: A Device for Locating a Wounded Animal for mounting on an arrow that has a head and a shaft. The Device is mounted on the head adjacent the shaft. A collar with a circular cross section has a plurality of prongs preferably mounted equi distant about the collar. The prongs are located at an acute angle to the collar. A signaling unit is located in each prong. The prongs are perforated adjacent the collar so as to break off easily. Upon impact of the arrow, at least one of the prongs breaks off and sticks in the animal. A transmitting unit in the prong permits ready location of the wounded animal.

Abstract: A nock or an arrow having a nock with a chemical light source allows an archer or hunter to more easily locate and retrieve an arrow that has been shot from a bow. The nock is inserted into an arrow, wherein the nock comprises a body having an end for receiving a bowstring and an insert projecting from an opposing end. The body is formed of a translucent material for transmitting the light so that the light is visible to a user or others. The nock has a recess formed in the insert and the body. A chemiluminescent lightstick is utilized as the light source, and the insert is inserted into an end of the arrow.

Abstract: An arrow nock has a nock body, an actuator and a pair of retaining tabs. The retaining tabs retain the bowstring in the arrow nock while the bowstring is drawn. When the bowstring is released, the bowstring moves the actuator to a forward position and the actuator moves the retaining tabs to an open position so that the bowstring clears the arrow nock without friction.

Abstract: The invention involves an arrow system having a shaft having a first end and an insert receptive of a standard point, the insert being disposed completely within the first end of the shaft. An insert installation tool may be used as part of the invention to facilitate insertion of the insert into the first end of the shaft. The invention further includes a reduced diameter hunting arrow shaft that maintains sufficient spine and weight characteristics. The reduced diameter hunting arrow shaft is receptive of standard or non-standard internal components for increasing arrow penetration and shot accuracy. Still further, the invention includes an arrow tip assembly including a male insert and a female point to assist in aligning points with arrow shafts.

Abstract: A game dart includes a dart barrel having a hollow chamber and front and rear ends each having a screw hole communicating with the hollow chamber. A ballast is retained in the chamber of the dart barrel, and includes two ends each having an engaging member for suspending the ballast in the chamber of the dart barrel, a dart point and a longitudinal flight shaft each includes a threaded coupler for detachably threading with the screw holes of the ends of the dart barrel, and the shaft includes a flight attached to the trailing end. The ballast may be molded within the dart barrel, and the dart barrel may have the screw holes directly formed in the ends for threading with the dart point and the shaft.

Abstract: The invention is directed to an arrow system having a shaft having a first end and an insert receptive of a standard point, the insert being disposed completely within the first end of the shaft. An insert installation tool may be used as part of the invention to facilitate insertion of the insert into the first end of the shaft. The invention further includes a reduced diameter hunting arrow shaft that maintains sufficient spine and weight characteristics. The reduced diameter hunting arrow shaft is receptive of standard or non-standard internal components for increasing arrow penetration and shot accuracy. Still further, the invention includes an arrow tip assembly including a male insert and a female point to assist in aligning points with arrow shafts. The arrow shaft is in one embodiment an aluminum-carbon arrow which includes a metallic core and an outer fiber reinforced polymer layer.

Abstract: The invention involves an arrow system having a shaft having a first end and an insert receptive of a standard point, the insert being disposed completely within the first end of the shaft. An insert installation tool may be used as part of the invention to facilitate insertion of the insert into the first end of the shaft. The invention further includes a reduced diameter hunting arrow shaft that maintains sufficient spine and weight characteristics. The reduced diameter hunting arrow shaft is receptive of standard or non-standard internal components for increasing arrow penetration and shot accuracy. Still further, the invention includes an arrow tip assembly including a male insert and a female point to assist in aligning points with arrow shafts.

Abstract: Disclosed herein is a safety, blunt end dart having a head of frusto-conical shape having first and second ends, with the first end being of a larger diameter than the second end, and the first end includes a magnet, and a longer flexible tail is fixedly and permanently secured to the second end.

Abstract: The Magnum Bullet Dart is a throwing dart which includes a body made from a firearm bullet cartridge of any automatic, semi-automatic, small or large caliber, magnum or regular types. In a first embodiment, a steel point extends from the front of the bullet casing, and a flight shaft of fixed length is attached to the rear of the bullet casing. A user can remove the shaft, and insert or remove weighting material, such as lead shot, into or out of the cartridge through the hole, to adjust the weight of the dart. In a second embodiment, a steel point extends from the front of the bullet casing, and a flight shaft is slidably mounted through a hole in the rear of the casing; the length of the shaft extending rearward of the casing may be adjusted according to the preference of the user. This adjustability does not require the dart owner to purchase different lengths of shafts, thus adding convenience and saving money.

Abstract: The invention involves an arrow system having a shaft having a first end and an insert receptive of a standard point, the insert being disposed completely within the first end of the shaft. An insert installation tool may be used as part of the invention to facilitate insertion of the insert into the first end of the shaft. The invention further includes a reduced diameter hunting arrow shaft that maintains sufficient spine and weight characteristics. The reduced diameter hunting arrow shaft is receptive of standard or non-standard internal components for increasing arrow penetration and shot accuracy. Still further, the invention includes an arrow tip assembly including a male insert and a female point to assist in aligning points with arrow shafts.

Abstract: An archer may levitate the front of an arrow in a magnetic field rather than resting the arrow against a mechanical arrow rest attached to a bow. From the first moment of release, the arrow has no contact with the bow or any apparatus attached to the bow.

Abstract: An outdoor dart game includes a plurality of darts having a shaft section and a tip member removably attachable to the front end portion of the shaft. A flight section is removably engageable with the shaft section and includes a plurality of flight members integral with each other and extending radially and outwardly from the longitudinal axis. Rubber covers may be connected to the shaft and flight sections respectively for providing a surface that a user may grip while handling the plurality of darts. Each dart may further include a flexible cord attachable to the shaft section and defining a loop for receiving a portion of a hand of a user so that same can throw the plurality of darts further. The game further includes a target pad, which may be selectively positioned at a remote distance from the plurality of darts.

Abstract: A reinforced archery arrow shaft includes a tubular core, with an attached fabric sleeve covering the core. The core may include carbon therein. The sleeve is formed from a fabric material, which is wrapped around and affixed to the core. Preferably, the sleeve fabric carries a decorative design or pattern on the exterior surface thereof. In a method of making an arrow, a piece of fabric is placed covering a hollow tubular core, and is affixed thereto. Then, a resin or protective composition, associated with the fabric material, is cured to adhere the fabric to the core. The resin may be impregnated into the fabric prior to its placement on the core, or alternatively, may be applied to the fabric by conventional methods such as spraying, dipping, brushing, or powder coating. The shaft may be treated to make the exterior surface smooth after curing. Optionally, accessories may be attached to the arrow shaft to form an arrow.

Abstract: A remotely-locatable tracking device and system is presented for use with a projectile that contacts a mobile target. The device is particularly useful with hunting arrows that contact a target animal. The device detaches from the arrow and attaches to the animal upon impact. The device is preferably comprised of a passive transponder and the system preferably uses a handheld transceiver to locate the transponder attached to the target animal.

Abstract: An annular dart carrying body and darts received thereon, in which the annular dart carrying body includes radially spaced apart dart receiving portions in which the dart receiving portions have flat portions positioned to come into full facing frictional contact with corresponding flat portions of each respective dart that is received in the dart receiving portions. The flat portions of the dart carrying body may comprise spaced apart cut away flat portions around the circumference of the dart carrying body. The flat portions of the dart carrying body may also be the flat bottom walls of respective recesses that open to the circumference of the dart carrying body to receive respective ones of the darts, with screw threads to enable screwing the darts into the respective recesses. The flat portions of each dart comprise a base portion having a flat bottom wall that comes into full facing frictional contact with the flat portions of the dart receiving portions of the dart carrying body when received therein.

Abstract: A graphite archery arrow having an elongate shaft, a fletching portion at the end of the shaft, and a tip portion at the opposite end of the shaft, the shaft consisting of a number of graphite fibers longitudinally oriented along the shaft; a number of graphite fibers biased to the longitudinally oriented graphite fibers; and a binder holding together the longitudinally oriented graphite fibers and the biased graphite fibers. The arrow may also have a tapered portion and a parallel portion.

Abstract: A detachable nock for use with a bow hunting arrow, said arrow having a locating device associated with and transported by it. The detachable nock engages with the target animal and separates the locating device from the arrow as the arrow passes through the target animal, thereby retaining the locating device with the animal to permit tracking. The detachable nock may be constructed with various fixed or movable retention components to accommodate the needs of a wide range of hunters. The design of the detachable nock minimizes its impact on the flight of the arrow and allows the bow hunter to use any style of hollow-shaft arrow, broadhead, and fletching.

Abstract: The present invention concerns a double spear gun comprising: a first spear gun having a top side and a bottom side; a second spear gun having a top side and a bottom side; a mounting means adapted to combine the two spear guns, the mounting means comprising: an upper mounting block having a top side and a bottom side, the upper mounting block top side adapted for releasably engaging the bottom side of the first spear gun, the upper mounting block further including a fastening means; a lower mounting block having a top side and a bottom side, the lower mounting block bottom side adapted for releasably engaging the top side of the second spear gun, the lower mounting block further including a fastening means; wherein the fastening means of the upper mounting block is releasably engaged with the fastening means of the lower mounting block.