Abstract: A toy gun assembly structure includes a gun frame, a hand guard sleeve, a gun barrel and a hand guard. The hand guard sleeve connected to the gun frame includes an inner insertion portion and an outer mounting portion. One end of the hand guard sleeve faces toward another end to define an axial direction. The inner insertion portion and the outer mounting portion respectively include first and second guiding members along the axial direction. The gun barrel is inserted into the inner insertion position. An outer perimeter of the gun barrel includes first corresponding guiding members slidably attached to the first guiding members correspondingly. The hand guard is mounted onto the outer mounting portion. An inner perimeter of the hand guard includes second corresponding guiding members slidably attached to the second guiding members correspondingly. Therefore, easy assembling and time saving for the gun assembly structure can be achieved.

Abstract: A parallax mitigation device and method is disclosed. The parallax mitigation device can be used in a reflex sight having a front portion for receiving light and a rear portion for providing a visual of a target and a projection of an aiming point superimposed on the visual to a user. The parallax mitigating device is placed at one of: the front portion, the rear portion, or in an optical path between the front and rear portion of the reflex sight. The parallax mitigating device is configured for indicating a center of the visual provided to the user to facilitate parallax mitigation of the reflex sight.

Abstract: This invention is a precision weapon that utilises solely as a projectile, a precision-ball made out of a suitable material namely solid C260 brass. It employs a smoothbore precision-barrel with a metal toothed rack/rail affixed along the northern hemisphere of the muzzle of the barrel that effectively converts some of the forward motion of the ball into rotational motion so that the ball is mechanically forced to rotate upwards/backwards at very high speed that can run into millions of rotations per minute, vastly improving it's ballistic coefficient and downrange accuracy. The weapon can be produced in a variety of existing types of firearms such as bolt-action, falling-block or semi-automatic, and can be chambered for a variety of calibers. A 5.5625 mm caliber bolt-action rimfire weapon for instance will provide a user with a weapon ideal for hunting small-game or for target shooting purposes.

Abstract: An indexer apparatus and method for using the indexer apparatus to prevent the unwanted migration or movement of a round within a chamber of a gun prior to firing. The indexer apparatus includes a movable member and a means for urging the movable member in the direction of a chambered round. The movable member may include a stud, a flexible or traverse section of a chamber or a barrel, a cam, and a ball bearing. The means for urging the moveable member in the direction of a chambered round include but are not limited to a spring, a solenoid, a magnet, a cam, an electromagnet, a valve, or a lever.

Abstract: Bushing for the chamber of a sporting pistol or rifle and the procedure for its manufacture. It comprises a tubular configuration, with a connection passage with its entrance orifice (2) and exit orifice (4) characterized in that said connection passage (8) is calibrated to a predetermined value in function of the output power of the sporting pistol or rifle.

Abstract: The present invention relates to a pneumatic gun capable of coating the bullets projected from it with a desired color for identification purpose. The pneumatic gun includes a gun body, a trigger, a gun barrel, a gas tank and a dye coating device. The dye coating device is mounted within the gun barrel, so that a bullet projected from the pneumatic gun is coated with dye having a desired color when passing through the dye coating device. As a result, the object hit by the bullet is stained with the color and can be easily identified.

Abstract: A ballistic adjustment device installed in a rear end of a gun barrel of a toy gun for adjustment of the ballistic range is disclosed to include a barrel bullet attached to the rear end of the gun barrel and having two inside protruding portions for holding a bullet in balance in the rear end of the gun barrel for firing, a positioning member press-fitted onto the bullet barrel and fastened to the rear end of the gun barrel, a pressure member fastened to the gun barrel and having a spring arm partially and downwardly projecting through an opening on the positioning member into tangent contact with the bullet to be fired, and a rotary control member rotatable to adjust the pressure between the spring arm and the bullet to be fired.

Abstract: Bushing for the chamber of a sporting pistol or rifle and the procedure for its manufacture. It comprises a tubular configuration, with a connection passage with its entrance orifice (2) and exit orifice (4) characterised in that said connection passage (8) is calibrated to a predetermined value in function of the output power of the sporting pistol or rifle.

Abstract: An initial velocity accelerating tube includes an outer pipe. Two ends of the outer pipe are connected with a stop member and a connection member, respectively. An inner pipe is provided in the outer pipe. Two ends of the inner pipe are inserted in the stop member and the connection member, respectively. When the initial velocity accelerating tube is mounted on a toy gun, one end of the inner pipe is against the front end of the barrel of the toy gun by the elastic force of the elastic member so as to tightly connect the barrel, providing an airtight effect. The barrel can be lengthened. To have a shoot with the long-barreled gun, the bullet can have a longer route to accelerate for getting a higher initial velocity.

Abstract: A toy system for launching a soft dart projectile. The dart projectile has a flexible shaft. A pneumatic launcher is used to launch the dart projectile. The pneumatic launcher contains an air pulse generating system that displaces air through a flexible barrel. The flexible barrel defines an internal conduit that extends between a first end and a second end. The second end of the flexible barrel is sized to receive the shaft of the dart projectile. The flexible barrel is fabricated from a flexible closed-cell foam that enables said flexible barrel to bend at least ninety degrees without blocking airflow through its internal conduit. As a result, the toy pneumatic launcher can be directed in a first direction, while the barrel is bent to fire in a second direction. The flexible barrel has features that prevent the dart projectile from binding in the barrel when the barrel is bent.

Abstract: The plural option loading system for a pneumatic gun. The pneumatic gun has a receiver with the first and second loading port disposed to permit loading either by gravity or forced loading such as from a magazine. The barrel can be locked to the receiver to permit loading through only one of the two ports depending on the orientation in which it is locked to the receiver and permits selective loading through only a selected port at any time.

Abstract: A paintball assembly capable of retaining a paintball in a loading chamber using a paintball catcher is disclosed. The paintball assembly includes a loading chamber, a detent, and a bolt. The loading chamber is coupled to a loading port to receive paintballs. In one embodiment, the detent includes a paintball catcher capable of catching the paintball as it is loaded into the loading chamber. In one example, the paintball catcher is a flexible paintball catcher extending into the loading chamber and is able to catch the paintball and hold it in a predefined position. When a trigger is pulled, the bolt pushes the paintball into a firing chamber while the paintball catcher releases the paintball.

Abstract: An apparatus to project toward a tree to disburse a pheromone, comprising: a releaser removably adjacent to a capsule via an extension; whereby said releaser and said capsule are disposed adjacent to each other in a deployable state, then the releaser separates from the capsule but is still connected via said extension whereby inertia causes said releaser to move away from said capsule into an attachment state, and related methods of applying a pheromone onto a tree branch.

Abstract: A ballistic adjustment device installed in a rear end of a gun barrel of a toy gun for adjustment of the ballistic range is disclosed to include a barrel bullet attached to the rear end of the gun barrel and having two inside protruding portions for holding a bullet in balance in the rear end of the gun barrel for firing, a positioning member press-fitted onto the bullet barrel and fastened to the rear end of the gun barrel, a pressure member fastened to the gun barrel and having a spring arm partially and downwardly projecting through an opening on the positioning member into tangent contact with the bullet to be fired, and a rotary control member rotatable to adjust the pressure between the spring arm and the bullet to be fired.

Abstract: A crossbow may include a crossbow barrel having reduced weight and increased strength and shock resistance to the crossbow. This invention may also aid in improving torsional resistance, improving specific stiffness, and increasing compresses strength. The invention may also reduce friction between a barrel and a bow string to increase bow string life. The invention may also reduce the friction between a barrel and a bow to allow added arrow distance. Additionally, the crossbow may decrease both vibration and sound.

Abstract: An initial velocity accelerating tube includes an outer pipe. Two ends of the outer pipe are connected with a stop member and a connection member, respectively. An inner pipe is provided in the outer pipe. Two ends of the inner pipe are inserted in the stop member and the connection member, respectively. When the initial velocity accelerating tube is mounted on a toy gun, one end of the inner pipe is against the front end of the barrel of the toy gun by the elastic force of the elastic member so as to tightly connect the barrel, providing an airtight effect. The barrel can be lengthened. To have a shoot with the long-barreled gun, the bullet can have a longer route to accelerate for getting a higher initial velocity.

Abstract: A barrel for prohibiting the paintball from dropping therefrom is provided by the present invention. The barrel includes a main body and an elastic ring. In which, a rear end of the main body is formed with a combining portion to combine with a paintball gun, and an extension is extended rearward from the combining portion. A bore penetrates through the main body, the combining portion and the extension. Around an outer periphery of the extension is disposed an annular groove, and at least one slot is formed in the annular groove, while the slot communicating the bore proximate to the extension. In addition, the elastic ring has a smaller perimeter than that of the annular groove. The elastic ring is disposed in the annular groove, and a part of the elastic ring sinks into the slot, overlapping a part of the bore.

Abstract: A reconfigurable toy gun includes a handle portion, a guide member coupled to the handle portion, and a barrel portion. The barrel portion is slidably coupled to the guide member and movable along the guide member between a first end portion of the guide member and second end portion of the guide member.

Abstract: An apparatus for deploying a bola comprises a hollow outer cylinder slidably housing a hollow inner cylinder. The inner cylinder includes one closed end and houses a payload consisting of a bola consisting of three weights connected by cords, and spacers interposed between said weights.

Abstract: Disclosed is a method for making a non-metallic, fiber-reinforced barrel tube having particular application for use in a barrel system to be attached to a paintball marker in order to direct paintballs propelled by the marker towards a target. A mandrel is first dipped in a releasing agent. The mandrel is then coated with a thin layer of metal (e.g., nickel or chrome) by means of a nano vapor deposition process. Next, a fiber-reinforced resinous sheet is wrapped over the thin metal layer to establish a tube therearound. A heat-sensitive plastic tape is wound around the tubular resinous sheet. The mandrel is heated in an oven to cause the thin metal layer to bond to the tubular resinous sheet. At the same time, the heat-sensitive tape shrinks to squeeze any air bubbles from the resinous sheet.

Abstract: A barrel system for a paintball marker including a breach removably connected to the paintball marker and a composite front detachably connected to the breach. The composite front of the barrel system includes a hollow bore through which a paintball is propelled, a non-metallic inner layer surrounding the bore, and a non-metallic outer layer surrounding the inner layer. The non-metallic inner layer is preferably manufactured from a plurality of unidirectional graphite fibers embedded within an epoxy resin. The non-metallic outer layer is preferably manufactured from a plurality of graphite fibers that are woven together and embedded with an epoxy resin for surrounding and reinforcing the inner layer. The non-metallic inner layer of the composite front is smoothly and continuously tapered to cause the hollow bore to be tapered from a relatively narrow diameter to a relatively wide diameter in the direction of travel of the paintball.

Abstract: One embodiment of a collapsible scent distributing airgun (“airgun”) may include a body and a gas cartridge, which may be carried by the body and contain a pressurized gas. The airgun may also have a pressure regulator valve, which may be carried by the body and communicated with the gas cartridge. In addition, the airgun may also have a barrel that may be pivotally carried by the body and movable between collapsed and extended positions. The barrel in the extended position may have an end communicated with the pressure regulator valve to receive the pressurized gas. Further, the barrel in the collapsed position may have the end adapted to receive a projectile configured to emit a scent. Also, the airgun may have a trigger that may be pivotally carried by the body and coupled to the pressure regulator valve to selectively direct the pressurized gas into the barrel for launching the projectile.

Abstract: A method of winding fibers on a mandrel, the wound fibers being in tension, includes providing a source of fibers, imposing a torque on the source that resists dispensing the fibers from the source to exert a tension on the fibers, adding ultra-violet sensitive material that is polymerized by exposure to ultra-violet light to a resin matrix, impregnating dispensed fibers with the additive containing resin matrix, rotating a mandrel to wind the impregnated fibers on the mandrel, the rotation of the mandrel acting to overcome the torque on the source and putting the fibers in tension, and in situ, quasi instantaneously polymerizing the additive containing resin matrix on the mandrel by means of exposing the additive containing resin matrix to ultra-violet light for a selected period of time, such polymerization acting to lock in the tension in the fibers at the time of polymerization. A rail gun fabricated by means of the above method is further included.

Abstract: A barrel (14)for a gas powered ball machine of the type used to simulate balls propelled whilst playing ball sports, especially those machines used to propel balls with a raised seam, such as a baseball or softball. The barrel (14) has one or more openings (160) along its cylindrical length that allow expanding gas to escape as a ball is fired from the machine. The openings (160) assist in predicting the pressure and volume of gas required to repeatedly propel a ball at a predetermined speed from the ball machine.

Abstract: This apparatus is a variable bore paintball barrel connector system. with a one-piece connector unit that joins the paintball marker with any mating barrel, regardless of manufacturer, at least one removable cylindrical compression sleeve that is inserted into the one-piece connector to provide the chosen compression to the paintball, thereby creating an optional compression zone, acting as an independent device that is not an incorporated component of any barrel nor marker unit, it allows for quick and easy transitions between the use of compression or no compression, and the compression sleeve has a raised lip on one edge that holds it in place and prevents it from slipping through the connector device.

Abstract: This invention is a barrel attachment attachable to the firing end of the barrel of a compressed gas gun and a method of using the same. The barrel attachment allows a user to spin a projectile fired from the gas gun just before it exits the barrel attachment. This spin alters the projectile's normally straight trajectory; in other words, it makes the projectile curve. The barrel attachment is adjustable. In the preferred embodiment, the user or shooter can adjust the amount of spin and thereby the amount that the projectile curves by rotating an adjustment sleeve about the barrel attachment, which causes contact pads to protrude into the passage of the barrel attachment. In the preferred embodiment, the user can adjust the direction of curve by rotating the barrel attachment about the gun barrel.

Abstract: A barrel of a paint ball gun includes a bore defined therethrough and the barrel includes a front part and a rear part which is connected with the body of the paint ball gun. The front part has a caliber larger than that of a paint ball and the rear part has a caliber smaller than that of the paint ball. A plurality of spiral grooves are defined in the rear part to increase stability of the paint balls and the distance the paint balls can treavel. The front part includes a plurality of apertures defined through a wall thereof so as to reduce noise when the paint balls shoot.

Abstract: Disclosed is a method for making a non-metallic, fiber-reinforced barrel tube having particular application for use in a barrel system to be attached to a paintball marker in order to direct paintballs propelled by the marker towards a target. A mandrel is first dipped in a releasing agent. The mandrel is then coated with a thin layer of metal (e.g., nickel or chrome) by means of a nano vapor deposition process. Next, a fiber-reinforced resinous sheet is wrapped over the thin metal layer to establish a tube therearound. A heat-sensitive plastic tape is wound around the tubular resinous sheet. The mandrel is heated in an oven to cause the thin metal layer to bond to the tubular resinous sheet. At the same time, the heat-sensitive tape shrinks to squeeze any air bubbles from the resinous sheet.

Abstract: Paint ball guns frequently break paint balls within the gun. When this happens the gun is jammed with paint and residue of broken paint balls, and a user of the gun cannot fire the gun. An improved paint ball gun includes structures and features which allow quick opening of the barrel and breach of the gun for cleaning. After cleaning of the barrel and breach of the gun, the barrel and gun breach are quickly returned to firing position, and a user of the gun loses only a few seconds of game time before being able to resume firing. A kit of retrofit parts, as well as methods of making and operating the improved paint ball gun are also disclosed.

Abstract: Paintball or non-lethal gun or marker apparatuses are disclosed to prevent projectiles from being inadvertently discharged from a paintball or other non-lethal gun or markers.

Abstract: In a barrel for a paint-ball gun, the entrance to the bore has a chamfer. The chamfer has a smooth transition from the entrance to the bore; preferably in the form of a section of a circle or parabola. In another embodiment, the bore of the barrel has a similar smooth transition in the muzzle of the barrel at the exit of the bore.

Abstract: A barrel system for a paintball marker that utilizes a carbon or fiberglass outer layer surrounding a hollow aluminum inner layer. The barrel can be manufactured with a woven carbon or fiberglass. The barrel may also use a unidirectional carbon or fiberglass. The unidirectional material utilizes a number of fibers longitudinally oriented along the aluminum bore and a number of fibers biased to the longitudinally oriented fibers. The barrel includes a built in silencer at the muzzle end. The barrel also includes a built in barrel connection at the breech end.

Abstract: A fixing ring structure for a barrel of a toy gun, wherein a fixing portion is disposed center of a gun body corresponding to a fixing ring, and a position fixing hole is defined in a side of the fixing portion for a gas pipe to embed therein. A though hole and a fixing slot are defined in the fixing ring, and a position fixing ring, a position fixing member, a resilient spring piece and a fixing spring piece are disposed in the through hole. The position fixing ring is disposed center of the fixing ring and the position fixing member of the position fixing ring, wherein the position fixing member is rotated using a special tool to disassemble the barrel disposed between the position fixing ring and the sight device, thereby achieving the objective of rapid disassembly, replacement and assembly of the barrel.

Abstract: A barrel (14) for a gas powered ball machine of the type used to simulate balls propelled whilst playing ball sports, especially those machines used to propel balls with a raised seam, such as a baseball or softball. The barrel (14) has one or more openings (16) along its cylindrical length that allow expanding gas to escape as a ball is fired from the machine. The openings (16) assist in predicting the pressure and volume of gas required to repeatedly propel a ball at a predetermined speed from the ball machine.

Abstract: An arrow barrel for shooting a ball bearing comprising: a shaft having a tail end and a head end opposite the tail end, the shaft being substantially cylindrical and hollow from the tail end to the head end and configured to receive the ball bearing; and a nock body coupled to the tail end of the shaft, the nock body having a bowstring end and an ammunition end opposite the bowstring end, the bowstring end comprising a bowstring notch configured to receive a bowstring, wherein a portion of the nock body is magnetized such that the nock body retains the ball bearing throughout the drawing of the bowstring and releases the ball bearing upon the release of the bowstring.

Abstract: A ball sizer for a paint-ball gun includes a bore having an entrance. In the preferred embodiment, the bore has a chamfer, which in turn has a smooth transition from the entrance to the bore of the sizer. The transition may define a section of a parabola, a section of a circle, or a combination of a straight line with a transition to a curve, such as a section of a parabola or circle. Similar transitions may be provided at the exit of the ball sizer, and at the entrance to the barrel attached to the exit of the sizer, or both.

Abstract: An improved feed port for a pneumatic projectile device comprising a moveable feed port aperture attached to a pneumatic device through which projectiles can be introduced to the breech of the pneumatic device, the feed port having an aperture permitting the free flow of projectiles from an external source.

Abstract: A paintball gun or marker end cap apparatus is disclosed, where the end cap apparatus includes tubular member having an opened, closed end and a penetrator, where the opened end is designed to be fitted over the end of a paintball barrel and a sleeve designed to be tightened causing the opened end of the tubular member to locking engage the barrel with sufficient force to hold the apparatus on the barrel until the sleeved is loosened and the penetrator is designed to rupture any inadvertently fired paintballs. The apparatus can also include at least one vent disposed near the closed end to vent any gas or liquid associated with a ruptured paintball.

Abstract: The present invention comprises a pneumatic paintball marker for use with an adaptor, the pneumatic paintball marker comprising a marker body which has a back portion and a front portion. The back portion is adapted to receive a paintball and the front portion is adapted to detachably connect with a barrel to discharge a paintball through the barrel. The barrel comprising a hollow elongated cylindrical tube, which comprises an interior diameter, a breech end and a connection means at the breech end and adapted for connection with the front portion of the marker and a paintball discharge muzzle end.

Abstract: A paintball gun or marker end cap apparatus is disclosed, where the end cap apparatus includes an internal portion having a paintball penetrating device and vent(s) for rupturing inadvertently discharged paintballs and exhausting gases and fluids, respectively, and an external portion having a locking or engaging assembly for engaging an outer portion of the paintball gun or marker with sufficient force that the assembly must to unlocked or untightened to remove.

Abstract: A barrel assembly for a pneumatic paintball gun includes a barrel body and a barrel insert. The barrel body has a breech end, a muzzle end, and a barrel bore extending longitudinally through the barrel body from the breech end to the muzzle end. The barrel insert has a breech end, a distal end, and an insert bore, and is configured to be removably housed within a breech portion of the bore of the barrel body. The breech end of the barrel body is configured to attach to a breech end of the paintball gun. The barrel insert collaborates with the barrel body to provide a firing bore for the barrel assembly which guides a paintball fired from the breech end of the gun through the barrel and out the muzzle end of the barrel body. The barrel insert can be constructed having a thin, flexible wall so as to permit lateral deformation of the barrel insert.

Abstract: A barrel with an adjustable bore diameter for use with a paint ball gun allowing the gun to fire paint ball pellets of different sizes. The barrel need not be removed from the gun in order to adjust the bore diameter, but rather an outer sleeve of the barrel is rotated to facilitate the change in the bore diameter. In one embodiment, the barrel includes an inner-bore sleeve, a barrel body having openings and force elements received in the openings. The barrel body and force elements are located between the inner-bore sleeve and outer sleeve. One embodiment includes recesses on an inner surface of the outer sleeve to rotationally index the force elements in the outer sleeve.

Abstract: A paintball gun barrel assembly includes a muzzle and a shank assembly that is self-aligning with respect to the muzzle due to the interaction of complementary angled surfaces. The shank assembly may include a bore tube that removably fits within an insert housing and has a first bore and a first concentric angled surface on an output end thereof. The muzzle has a second bore and a second concentric angled surface on the input end thereof. Mating the insert housing, with the bore tube inside, to the muzzle portion engages the first angled surface with the second angled surface causing the first bore at the output end of the first bore tube to substantially align with the second bore at the input end of the muzzle portion. A plurality of different size bore tubes may be used, each having a different internal bore diameter, but the same outer dimensions.

Abstract: The invention provides a barrel for a gun having a portion comprising a substantially transparent material. The barrel can be made of any substantially transparent material including a polycarbonate or glass, such as tempered glass. The barrel is coated with a substantially transparent material to add hardness, which provides scratch resistance, and prevent deterioration of the substantially transparent material. A barrel assembly is constructed by attaching the barrel to a gun housing, also called a barrel cage, comprised of a stiff material, for example metal such as aluminum. In another aspect of the invention, an expansion chamber is provided having a housing with a portion comprising a substantially transparent material, such as a polycarbonate or glass, such as, tempered glass. The housing is coated with a substantially transparent material to reduce scratching and absorption of pressurized gas into the transparent material.

Abstract: A quick detachable gun barrel assembly for allowing a user to repair one's gun more quickly and easily when needed. The quick detachable gun barrel assembly includes a barrel coupling assembly being adapted to removably attach to a chamber of a gun; and also includes an elongate barrel member being detachably attached to the barrel coupling assembly.

Abstract: A barrel assembly for a pneumatic paintball gun includes a barrel body and a barrel insert. The barrel body has a breech end, a muzzle end, and a barrel bore extending longitudinally through the barrel body from the breech end to the muzzle end. The barrel insert has a breech end, a distal end, and an insert bore, and is configured to be removably housed within a breech portion of the bore of the barrel body. The breech end of the barrel body is configured to attach to a breech end of the paintball gun. The barrel insert collaborates with the barrel body to provide a firing bore for the barrel assembly which guides a paintball fired from the breech end of the gun through the barrel and out the muzzle end of the barrel body. The barrel insert can be constructed having a thin, flexible wall so as to permit lateral deformation of the barrel insert.

Abstract: A lacquer bullet gun barrel, having a barrel case, concentrically surrounding a boring and having a rear end that is fastened to a front end of a gun case. The rear end of the barrel case has a cavity, receiving an insertion tube, which has a diameter equal to said boring and is aligned with said boring on a common axis. With this assembly, lacquer bullets tightly fit into the insertion tube, so that gas drives lacquer bullets therein with high pressure. Aligning the insertion tube with the boring ensures firing precision and an increased firing range.

Abstract: A paint bullet gun is constructed to include a gun body, a stock, a trigger, a bullet loading guide, a rear sight rack, and a carburetion chamber, wherein the gun body is formed of an upper gun barrel and a lower barrel, the upper gun barrel having a top bullet loading hole, a plurality of recessed holes longitudinally aligned at a top side thereof, a side slot, and a rubber stop mounted in the side slot and adapted to stop the loaded paint bullets in position; the bullet loading guide is sleeved onto the upper gun barrel to hold the rubber stop in the side slot, having a plurality of fixing devices, which are respectively fastened to the recessed holes of the upper gun barrel to fix said bullet loading guide to the upper gun barrel, the fixing devices each having a compression spring, and a steel ball supported on the compression spring at a bottom side and forced by the compression spring into engagement with one recessed hole of the upper gun barrel.

Abstract: A gun having a slightly curved bore for discharging a frangible generally spherical projectile creating an improvement in trajectory of the projectile. The slightly curved bore applies a spin onto the spherical projectile without causing the projectile to rupture.

Abstract: A projectile guide for a compressed gas powered gun which includes a hollow cylindrical sleeve-like base with an axially extending projectile guiding cylindrical opening therethrough. The base has at one end thereof and extending axially from this one end a plurality of elongate and circumferentially spaced members of finite length and configured relative to each other to define a projectile guiding passageway for a projectile fired from the gun.