Abstract: A mechanism for determining the presence of a round of ammunition within a firearm by measuring the resistance across the round upon passing a test current through electrodes positioned to contact ammunition, and optionally means for determining the viability of the ammunition.

Abstract: Device for adapting shooting aids onto an individual fire-arm (1) at the vicinity of the front portion of the barrel, characterized in that it is comprised of a fixed element (8) integral with the fire-arm, and a removable element (13) which can be made integral with the fixed element (8) and the barrel (2) of the fire-arm. The shooting aid can be a laser designator or a grenade launcher.

Abstract: An advanced individual combat weapon system provides a means of delivering a small warhead fired from a combat rifle over a range of at least 1200 meters with great accuracy and without a violent back blast. The delivery system is a small fin-stabilized, laser-guided solid propellant rocket with an integral control system for ignition and in-flight correction to the desired target. The target is acquired and illuminated by an infrared laser spot generated from a laser illuminator combined with an optical rangefinder mounted on the rifle. The firing of a small booster cartridge launches the rocket from a launch tube. The control system senses the reflected laser energy of the correct wavelength and corrects the flight based on the directional intensity of the reflected laser energy directed to the target.

Abstract: A device for training retrieving dogs comprising of a launcher device (19) made to fit within the discharge end of a shotgun barrel (17) of standard construction equipped with a internal thread socket (16) made to receive replacement choke tubes by means of the external thread socket (10) of the choke-mount adapter shaft (5) to launch a projectile (21)to simulate a shot game bird for the dog to retrieve in order to build and refine the skills of a field working Gun Dog by incorporating the shotgun (21) in the training process.

Abstract: A fragment-sealing bullet trap for rifle muzzle launched projectiles having a soft aluminum plug for decelerating and absorbing the softer components of rifle bullets, followed by a shock absorbing piston to mitigate the peak acceleration of the projectile due to bullet impact, in turn followed by a hardened steel anvil to safely capture any steel bullet components. Attached to the aft portion of the plug is an aluminum cap, containing a rubber gasket, which expands during bullet penetration, but rebounds due to its resiliency, tightly sealing off the bullet trap against the escape of bullet and plug fragments. The cap is designed to prevent the gasket from blowing out as a result of high bullet trap pressurization.

Abstract: A line carrying projectile has an axially elongate hollow projectile rod for muzzle loading within the bore of an associated shotgun and an at least partially transparent container assembly mounted on the forward end of the projectile rod and containing a chemiluminescent flare. The flare is removed from the container and activated by bending after which it is reassembled within the container in its active condition preparatory to firing. A part of the projectile frictionally engages and grips an associated portion of the gun barrel to releasably retain the projectile in a launching position within the gun and regardless of barrel orientation until the projectile is fired from the gun.

Abstract: An improved detonator assembly for a black powder firearm having a breech block, a receiver, and a nipple. The detonator assembly comprises a primer and a primer carrier. The primer carrier has an axial bore dimensioned to receive the primer at one end and slip over the firearm nipple at the opposite end. The primer carrier has a lip that abuts the breech block rear end. A tab laterally extends from the lip to provide a handle for installing and removing the assembly and a visual indication that the firearm is primed.

Abstract: A silencer apparatus that can be attached to a standard autoloading handgun having a laser sight module mounted to the front face of the slide of the handgun. The silencer module features additional electronics so that the firing status of the firearm can be ascertained. A skid plate protected switch in the magazine compartment of the handgun provides information as to whether a new clip has been inserted. A flash detector located within the silencer counts the rounds fired and provides a digital read-out of remaining rounds to be fired. Also, the accumulated fired rounds is provided to enable the user to know when the silencer needs cleaning. Noise reduction is provided by a metal honeycomb.

Abstract: A plug member configured in a complementary relationship relative to a weapon firearm chamber is provided. The plug includes a rear wall having a flexible flag strip extending therefrom to project from the firearm when the firearm is arranged to cover the firearm chamber, thereby indicating a positioning of the plug within for visual indication of a safety firearm capable of transport and handling.

Abstract: An extractor as fitted to an automatic pistol comprising: a frame; a slide with a breech block at the rear which slides on the frame over a barrel to form a cartridge receiving chamber; an extractor having a claw provided with an apex so that when a cartridge is in the chamber said extractor protrudes out of the breech block exposing a coloured dot provided on the extractor to indicate that the chamber is loaded and improve the ejection of a cartridge and the function of the pistol.

Abstract: A practice tear gas round comprises a projectile having the same caliber as the standard tear gas gun, and a main adapter which is separately loadable into the launcher and has an outside diameter of the same caliber as the launcher while providing a chamber of reduced diameter for use of the launcher with devices of smaller caliber than the launcher. Preferably, an auxiliary adapter is receivable within the chamber of the main adapter in order to further reduce the caliber of propelling charge which is to be used for the practice round, while allowing removal of the auxiliary adaptor in order to receive in the main adaptor a standard 12 gauge shot shell, for example, for use of the launcher as a single shot 12 gauge shot gun. Additionally, the standard gas gun can be converted to a single shot rifle or shot gun for firing various other smaller calibers of cartridges and/or shot shells according to the auxiliary adaptor selected and inserted into the main adaptor for reception of a cartridge or shot shell.

Abstract: A cartridge tube for a grenade capable of being fired by a live round of a weapon has a bullet trap to stop the bullet and a plug made of a deformable material to prevent the fragments produced when the bullet impacts on the bullet trap from escaping from the cartridge tube. The plug bears against a wall positioned between the plug and the bullet trap. The wall is attached to the cartridge tube and is substantially perpendicular to the center-line of the tube. The wall is positioned at a distance from the bullet trap along the center-line of the cartridge tube, thus establishing an empty space between the wall and the bullet trap.

Abstract: An improved alignment guide for use in the MK-19 grenade launcher of the type having a body member with a centrally located slot defined therein extending to a bowl formed in the body member, the guide being characterized by a lack of upper and lower edge rails and having a single body aperture formed therein between its central screw aperture and the bowl, the body member around the bowl being approximately 0.25 inch thick with a thickened arm provided at the end of the body member beyond the bowl, such thickened arm being approximately 0.5 inch thick, such alignment guide having the same interface dimensions as that of the prior art alignment guide to allow the alignment guide of this invention to be engaged into the receiver of an MK-19 grenade launcher.

Abstract: A grenade launching apparatus launches a number of grenades and has a conller and a launcher. The controller controls the launching and includes a selector which is responsive to operator input for selecting one or more of the grenades to be launched. The controller also includes a display for indicating that a selected grenade has been launched. The launcher is for launching one or more of the grenades and includes a firing circuit which is responsive to the selector. The firing circuit activates the launcher to launch each selected grenade. The launcher also includes a launch detector for detecting that a selected grenade has been launched by the firing circuit. The display of the controller is responsive to the launch detector.

Abstract: A lightweight grenade launcher utilizing a rotary feed mechanism in conjunction with a toggle link bolt movement mechanism to incorporate the barrel, flash suppressor, bolt and toggle link mechanism as part of the gun's recoiling mass with the barrel moving during recoil and counter recoil through a center aperture in the rotary sprocket of the feed mechanism.

Abstract: A projector assembly of a defensive projecting device for containing a plurality of projectiles for defending a given object, the assembly including a plurality of projectors combined into a unitary magazine block which can be slid into a magazine carrier having a bottom plate and a magazine shoe, and locked in place. The magazine carrier is mounted on the object to be defended.

Abstract: A hand operated grenade launcher having a multiple round detachable magazine positioned to overlie the launcher barrel and to cooperatively deposit a cartridge in firing position, the launcher having a gas operated delay blow back action which automatically ejects a fired cartridge and actuates the deposit of a live cartridge in firing position in connection with the magazine.

Abstract: An adapter for use with a rifle mountable grenade launcher unit to form a stand alone hand held grenade launcher. The adapter includes a rod to be inserted into a rifle barrel receiving hole of grenade launcher unit and a recoil surface that can be located, at least partially, behind the barrel bore of the grenade launcher unit. The recoil surface intersects the center axis of the grenade launcher unit barrel bore such that recoil after firing can be absorbed in line with the barrel bore to thereby minimize muzzle climb.

Abstract: A projectile launching baton is provided which includes a hollow barrel, a handle disengageably connected to the barrel, and a projectile held in a mouth of the barrel. An outer wall of the barrel is formed with a substance such as a polycarbonate or a rubber. An interior wall of the barrel may be formed of steel. Within the handle is located a mechanism for causing discharge of the projectile from the barrel. An alternating series of recoil prevention elements are lodged in the handle adjacent the barrel. These elements are preferably alternating rings of lead and air-filled flexible-walled pillows.

Abstract: A projection device for firing e.g. a squash ball comprises a one-piece plastics body with a transverse bore in which a trigger plunger is seated. The squash ball seats in a flaring muzzle cavity at the front end of the body. A blank cartridge is loaded into a firing chamber immediately behind the muzzle cavity, and having a breech formed by the front surface of the trigger plunger. The trigger plunger is pierced by an opening which, when the plunger is depressed, allows a sprung firing pin to move forward and fire the cartridge to eject the squash ball at high velocity. To prevent inadvertent discharge of the device, the head of the plunger is restrained by a withdrawable split pin and also by a hinging spring clip.

Abstract: A mount for rifles is provided, located under the barrel to allow the rifles to carry accessories such as lights, lasers, grenade and flare launchers thereon which mount fits existing rifle configurations without modification to the basic rifle components.

Abstract: A system is disclosed for relieving excessive pressure within a combustion chamber of a spin-stabilized, jet-propelled missile launching system. An annular passage surrounds an exhaust nozzle, the passage being in communication with the chamber. A unitary valve ring closes the passage. Frangible pins hold the unitary valve ring in its closing position. An exhaust vent slaving cavity is provided for capturing the unitary valve ring upon rupture of the frangible pins. Exhaust vent ports communicate the slaving cavity with atmosphere, whereby the slaving cavity operates to capture the entire unitary valve ring bodily upon rupture of the frangible pins in response to excessive pressure within the chamber to relieve the pressure as the exhaust vent ports exhaust the chamber.

Abstract: A release mechanism for facilitating launching a spin-stabilized self-propelled missile, which includes a rotary missile support and a launching support for supporting the rotary missile support for rotation about a spin axis and for movement axially of the spin axis. A nozzle assembly extends between the rotary missile support and the missile coaxial with the spin axis. A separable portion of the nozzle assembly moves axially in an aft direction under the influence of exhaust gases expelled by the missile. The separable portion strikes an abutment on the rotary missile support to effect rapid movement of the rotary missle support axially away from the missile on separation of the separable portion of the nozzle assembly. A low friction bearing is provided for engagement by the rotary missile support at its aft limit position of travel away from the missile to reduce spin momentum induced forces caused by the rotary missile support.

Abstract: A minefield breaching system or apparatus and a delivery projectile therefor comprises a projectile arranged to be mounted on a rifle, light mortar or similar weapon and to be projected in a desired direction by firing a round from the weapon into the projectile; an explosive line connected directly or indirectly at one end thereof to the projectile; and detonation means arranged to be connected directly or indirectly to the explosive line at the other end thereof for detonation of the explosive line; the projectile comprising a rocket the motor of which is arranged for operational ignition upon a round from the weapon being fired into the projectile, and the projectile carrying a presence or location indicator together with power means for operation of the indicator.

Abstract: A safety plug for the firing chamber of a weapon to provide a visual indication that the weapon firing chamber is free of live ammunition. The safety plug includes a cylindrical body having a diameter which is less than the weapon chamber bore. This body is rounded in the preferred embodiment at its forward end portion and fabricated from a non-abrasive material. A tab extends outwardly from the body such that it is visible when the firing chamber is closed to indicate a safe weapon. A button is carried by the rear end portion of the body. This button is preferably fabricated from a hardened material and can be readily engaged by the metal extractor of a conventional weapon for ejecting the plug in normal weapon operation. The plug can be used with a semi-automatic weapon in which the magazine is, or is not, inserted.

Abstract: An accessory mount particularly well suited to a broad variety of weapons (e.g., Heckler & Koch firearms) comprises a plug portion that fits within the weapon accessory mounting hole and is radially expanded, e.g., by means of an interior mandrel, to provide large area, high friction, robust engagement between the plug and the mounting hole. A second portion for holding an accessory (e.g., a laser sight) is coupled to the plug by an alignment means and a hand operated screw or lock so that the accessory is easily removed and reinstalled in the same position relative to the weapon boresight without need for recalibration.

Abstract: For use with a launching apparatus for a spin-stabilized self-propelled missile, which includes a rotary missile support defining a spin axis and receiving the missile with a missile axis of rotation, and a spring operative to hold the missile on the missile support, a method and apparatus are provided for aligning the missile axis of rotation with the spin axis. The rotary missile support and missile are supported on a fixture for rotation about the spin axis. The rotary missile support and missile then are rotated relative to the fixture about the spin axis. The amount of eccentricity between the missile axis of rotation and the spin axis is determined. The missile is restrained for single plane motion and is adjustably moved relative to the rotary support to coincidently align the missile axis of rotation with the spin axis. The spring then is tightened to maintain the coincident alignment of the axes.

Abstract: A release mechanism for facilitating launching a spin-stabilized self-propelled missile. A missile support includes a rotary turbine having a receptacle defining a spin axis, and a fixed support for supporting the rotary turbine for rotation about the spin axis and for movement axially of the spin axis. A nozzle assembly extends from the missile into the receptacle and includes a fusible joint for heating by high temperature exhaust gases expelled by the missile to release the missile, and an aft nozzle section movable away from the missile on fusing and separation of the fusible joint. An abutment on the rotary turbine is disposed in the path of movement of the aft nozzle section for striking by the aft nozzle section to effect rapid movement of the rotary turbine and receptacle axially away from the missile on fusing and separation of the fusible joint.

Abstract: A hand operated grenade launcher having a multiple round disposable magazine, having the magazine forming an extension of the barrel in cooperatively positioning a cartridge in firing position, having a pump action barrel travel a shorter distance than a cartridge length and having an automatic advancement and ejection of the magazine.

Abstract: A gun-loaded indicator device for shotguns of the type in which a cartridge chamber is defined at the breech end of a barrel removably mounted in a stock (3), comprises a feeler ball (9) movable within a through hole (10) provided in the breech end and opening into the cartridge chamber and extending radially to it and comprises a bar-like lever (13) pivoted within the stock (3) and having a first end (13a) maintained in contact with the feeler ball (9) and its second end (13b) subjected to spring means (15); the lever (13) is angularly mobile within a respective conjugate seat (16) from a position in which the first end (13a) of the lever (13) is in line with the stock (3) to a position in which the first end (13a) projects laterally from it.

Abstract: A safety plug for the firing chamber of a weapon to provide a visual indication that the weapon firing chamber is free of live ammunition. The safety plug includes a cylindrical body having a diameter which is less than the weapon chamber bore. This body is rounded in the preferred embodiment at its forward end portion and fabricated from a non-abrasive material. A tab extends outwardly from the body such that it is visible when the firing chamber is closed to indicate a safe weapon. A button is carried by the rear end portion of the body. This button is preferably fabricated from a hardened material and can be readily engaged by the metal extractor of a conventional weapon for ejecting the plug in normal weapon operation. The plug can be used with a semi-automatic weapon in which the magazine is, or is not, inserted.

Abstract: A versatile multi-sized launcher comprising means for adapting its end to any conventional rifle including a hole fitted at the bottom of said launcher's body through which propellant gases can pass to cause the grenade to be propelled when the rifle is fired and said launcher being in the form of multiple diameter cylindrical sections joined together and gradually having the largest diameter section at the end opposite from said rifle adaptor means.

Abstract: Disclosed is a net gun which utilizes a stock, an action member, a firing chamber, a manifold and a plurality of barrels connected to the manifold. Each of the barrels are adapted to receive a projectile which has an inner bore that is closely fitted over the external diameter of the barrel. Each barrel has a restrictor at the manifold end. A plurality of apertures are formed through the wall of the projectile adjacent to the barrel.

Abstract: An electronically operated pistol (10) has a frame (32) upon which is mounted a barrel (36) and a shell (12) which encloses virtually all moving parts. The pistol has a trigger (14) which, when pulled, moves a front section (56) of a trigger bar (48) carrying a magnet (80) of a Hall effect switch. The trigger bar has a rear section (58) connected to a solenoid (114) which is actuated by a current amplifier (104) in a control circuit (124) which includes the Hall effect switch. Both sections of the trigger bar are independently axially movable but are so connected as to be pivotable about the trigger in unison to perform a disconnect function in association with a sear (78). A switch (104) in the control circuit mounted on the barrel senses the presence of a chambered cartridge (92). The control circuit includes a first light emitting diode (26) which illuminates when a round is chambered and a second light emitting diode (28) which illuminates when control circuit power is low.

Abstract: A rifle grenade comprises, at one end, a tube designed to be fitted to the barrel of a gun and, at the other end, a fuse and a head enclosing an explosive charge, the said tube comprising, upstream of the fuse, a bullet-trap and a booster-charge of propellant powder protected from external influences by a sealed wall.The said sealed wall is integral with a tubular element of the said tube and comprises an axial cavity defining a reduction in the thickness of the wall sufficient to ensure that the bullet shot by the gun shall pierce the wall without tearing it.The purpose is to increase the operational safety of rifle grenade.

Abstract: The present invention is a method and apparatus for reconfiguring an automatic rifle (10) for quick attachment and detachment of a grenade launcher (32). The apparatus invention comprises an upper rack (42) securable to the barrel (16) of the rifle (10), and a lower rack (34) to which the grenade launcher (32) can be secured. The upper and lower racks (42, 34) carry quick connect/disconnect fittings (66, 68, 78, 80) for mating and unmating of the launcher (32) with regard to the rifle (10).

Abstract: A safety device for use with a repeating firearm having a magazine well for holding a box-like removable magazine, to prevent the firearm from being fired unintentionally and for providing an indication visible at some distance that the firearm is in a safe condition. A main body of the device corresponds in size with the magazine for the weapon and includes a top portion which extends into the space left open between the breech and the face of the bolt of the weapon when the bolt is withdrawn. A plunger slidably disposed within the main body is connected with a movable chamber probe which would be prevented from entering the chamber by a round of ammunition, and which prevents the plunger from being moved to a position latching the device in the firearm unless the probe is able to enter the firing chamber.

Abstract: There is disclosed a chamber indicator apparatus for a conventional revolver. The chamber indicator apparatus employs an aperture in the recoil plate which aperture abuts against the back end of the cylinder and allows one to view a given area of the cylinder via the aperture. The viewed cylinder area has emplaced thereon indicia indicative of the chamber which is aligned with the barrel of the gun. In this manner, the user can view the indicia via the aperture and hence identify the chamber accommodating the cartridge that is to be fired. Accordingly, the user now has the knowledge of the number of shots fired as well as the chamber being used at all times during the firing of a weapon.

Abstract: A grenade launcher and attachment for use on an infantry weapon, such as a rifle. The launcher fires grenades of the type which have a hollow tubular rear chamber slidably mounted on a guide rod and a piston head fitted into the bore of the chamber to seal an explosive charge therein and form an extensible explosion chamber. Locking elements for silently installing the grenade launcher without the use of complex tools are provided. Recoil buffering or compensation is provided to minimize the perceived recoil when grenades or other projectiles are launched from a shoulder held firing position. A detent is provided to secure projectiles on the guide tube until they are fired.

Abstract: A hand-held, single-shot grenade launcher including a receiver and attached stocks for both hands, a barrel slidable in the receiver, an assembly of Belleville springs for absorbing recoil and a breech connected to the end of the barrel. A grenade round is manually inserted in a firing chamber defined by the breech and the inner end of the barrel and cammed into firing position by a sliding breech block that carries a pivotal firing lever operated by a striker mounted in the receiver. The striker is biased by a helical striker spring and is cocked by a cocking lever associated with the right hand grip. The weapon is fired by depressing the cocking lever and thus pulling the trigger to cam the striker upward and release it from a sear operated by the cocking lever. Upon release the striker impacts an arm of the firing lever to drive a firing pin carried by the other arm of the firing lever into the primer of the grenade round casing.

Abstract: An active protection system (10) is disclosed as having a launch tube (12) with a round inner bore (44) that tapers from an open muzzle end (42) thereof toward a closed rear end (40) to facilitate loading of a cartridge (26) and to permit ejection thereof after firing. The cartridge (26) utilized has a metal case (28) that provides a liner for the launch tube and includes a sabot (116) for launching at least one projectile (120, 122) upon ignition of a propellant (114) by an ignitor (126). Transverse force is generated by utilizing a plurality of projectiles (120, 122) preferably embodied by an outer ring of cubical projectiles (120) and spherical projectiles (122) received within the outer ring so as to provide projectile dispersion that increases the probability of an impact with the intended target.

Abstract: A safety device for firearms, including a chamber plug portion fitting in the breech and preventing insertion of a cartridge, and an indicator located externally of the weapon and fixedly joined with the chamber plug by a connector small enough to fit within a pre-existing passageway extending between the interior of the firing chamber and the exterior of the weapon when the breech of the weapon is closed as if in readiness for firing. Preferably, the indicator is of a bright color and is located so as to be visible on both sides of the weapon.