Abstract: A device and method for recovering articles inadvertently submerged in a body of water are disclosed. The device comprises a housing attachable to the article, the housing defining a storage chamber with a storage chamber opening at one end. The storage chamber contains a buoyant flotation element held in the storage chamber by a water-activated release mechanism that permits the flotation element to move toward and through the storage chamber opening when the device is submerged in water. The flotation element remains connected to the housing by a connection mechanism. The device housing also may include a biasing mechanism configured to bias the flotation element toward the storage chamber opening. The method includes attaching the housing to the article to be retrieved, having the flotation element release from the housing and float to the surface of the water and following the connection mechanism from the flotation element to the housing.

Abstract: A method for controlling a lifetime of a firearm including replacing a former portion of a firing mechanism of the firearm with a new portion, and constructing the new portion of the firing mechanism with a mechanical strength weaker than the former portion so that the new portion mechanically fails after significantly less rounds have been fired from the firearm than with the former portion.

Abstract: An apparatus for counting and storing a number of rounds fired from a gun includes a microcomputer; a non-volatile memory connected to the microcomputer; and at least one piezoelectric transducer connected to the microcomputer and mounted on the gun, the at least one piezoelectric transducer comprising a power source that generates power during operation of the gun. The piezoelectric transducer may also sense the firing of the gun.

Abstract: Device for detecting and counting shots fired by an automatic or semi-automatic fire arm with a barrel and moving parts to recock the fire arm, sliding in the axial direction (Y-Y?) of the barrel between a front position and a rear position, whereby the fire arm undergoes accelerations in the axial direction (Y-Y?) of the barrel for every fired shot, caused by a succession of shocks due to the shot being fired and to the movements of the moving parts, whereby the progression in time of the accelerations is typical for a fire arm and for the type of ammunition used, thus forming a typical signature for the fire arm and for the type of ammunition, characterized in that it comprises an accelerometer (2) with a pass band which is sensitive to shocks in the axial direction (Y-Y?) of the barrel and a microprocessor (3) for analyzing the signal (S) of the accelerometer (2) while firing, whereby the microprocessor (3) is equipped with an algorithm to count the number of shots fired, based on the discernment and recor

Abstract: Firearm that includes a safety that doubles as an on-off switch for electrical accessories.

Abstract: A method including sensing movement of an existing non-shot-indicator of a handgun, and interpreting a sensed movement of the existing non-shot-indicator as a shot fired from the handgun so that the sensed movement serves as a shot counter for the handgun.

Abstract: Disclosed is a chamber closing piece (1) for firearms. Said chamber closing piece (1) can be rotatably and reversibly moved forward in the direction of the barrel muzzle (3) and rearward in the direction of the rear stock (4) and comprises one or several mechanisms (8) for indirectly or directly firing a bullet (9) that faces the muzzle in relation to the chamber closing piece (1). Said mechanism (8) for firing the ammunition is based on an electrical and/or thermal and/or optical and/or laser-based active principle.

Abstract: An identification and tracking device (110b) for use in combination with a firearm bullet (100) comprising a means for detaching the device (110b) from the bullet (100) during penetration of the target. In this manner, the tracking device (110b) and/or identification device (110b) will be attached to an object when the bullet (100) penetrates the object.

Abstract: A rounds counter for a weapon mount is disclosed. The rounds counter is mounted on the mount in a remote location from the weapon itself, such as to a pedestal supporting a gimbal rotating the weapon mount in azimuth, inside an elevation drive housing, or to other structure. The mounting location is selected to be one where shock loads are relatively high, as compared to other locations on the mount. The rounds counter includes a sensor which senses shock due to the firing of the weapon, such as an accelerometer or strain gauge. The sensor could also be an acoustic transducer. Analog and digital circuitry for processing the sensor signal and to count the firing of the gun is also disclosed. The rounds counter is particularly useful as a common, single rounds counter unit for a weapon mount is adapted to receive and fire a variety of weapons, such as remotely operated weapon mounts mounted to military vehicles and patrol watercraft adapted to receive and fire four different types of guns.

Abstract: A ballistic test projectile includes a nose section comprising a windshield and aft of the windshield, an ogive; a body section aft of the nose section, the body section comprising a generally cylindrical body connected to the ogive; a base section aft of the body section, the base section comprising a base adapter connected to the body and a base bottom connected to the base adapter; a base pressure gage disposed in the base bottom; at least one side pressure gage disposed in the body; and an electronics cup disposed in the body, the electronics cup comprising a battery cup, a signal conditioning cup, a multiplexer cup, an accelerometer cup and a transmitter cup.

Abstract: A method and a system for measuring the velocity of a projectile. The method and system employ sensors that uses magnetoresistive sensing elements to measure the velocity of a projectile. Two magnetoresistive based sensors may be used to sense a time at which a projectile crosses a sense path associated with each of the sensors. Because the sensors employ magnetoresistive sensing elements, high quality voltage signals are produced, allowing accurate time measurements to be calculated. Accordingly, the velocity of the projectile can be determined by using these time measurements along with a measured spacing distance between the sensors.

Abstract: A paintball gun with a pressure gauge device includes a rear cap, a pressure gauge, and a canopy. The rear cap has a first end and a second end. The rear cap has a compartment at the first end adapted to accommodate the pressure gauge. The second end of the rear cap has a piston block. The piston block has an air passage interconnecting with an air passage of the pressure gauge. The canopy is fixed to the rear cap which is then secured to a rear end of a barrel in the paintball gun. A triggering block is provided in the barrel. The triggering block engages with the rear cap. This design allows the user to read the air pressure within the paintball gun so that the user may apply air pressure to the paintball gun when necessary.

Abstract: This invention refers to a compact monitoring system for firearms, including a detecting and tracking structure and a method for confirming ammunition has been discharged from said weapon, more specifically, to a weapon usage detecting and tracking device and a method that utilizes battery operated microcontroller circuitry, and could be used in combination either with a load depletion process warning system which in turn comprises a method for signalizing the user of the depletion process using luminous indicators, and a time and date event recorder or in combination with both, sharing substantially the same structure. Provisions are made in the time recording structure to securely retrieve use information at a further date in a way that may include secure handshaking and a serial number.

Abstract: In one aspect, a firearm system allows multiple modular firearm configurations, thereby providing significant customizability of the firearm by the user. All of the components necessary to fire the weapon are carried on a common receiver assembly. Interchangeable slide assemblies and handgrip modules can be detachably connected to the common receiver to substitute one firearm size, handgrip circumference, and/or munitions caliber for another. For example, the handgrip module can be substituted so as to change the size of the firearm and/or the slide assembly can be changed for purposes of changing the caliber of the firearm. In another aspect, an improved firing pin safety, which is capable of use in a one-piece machined slide, and which is additionally capable of being manufactured as a stamped sheet metal part, is provided.

Abstract: A method for controlling a lifetime of a firearm including, but not limited to limiting a number of rounds a firearm can fire, wherein after a certain number of rounds have been fired, the firearm is rendered incapable of firing more rounds.

Abstract: The present invention relates to a safety means for weapons. The safety means comprises an electronic control unit for the authentication of an authorized user and the control of a safety mechanism. The safety mechanism mechanically engages with at least one mechanical part of the ignition chain so that said ignition chain is interrupted and firing is prevented. The safety mechanism comprises an actuator for releasing said engagement of the safety mechanism in case the electronic control unit identifies an authentication signal. The safety means according to the present invention is provided in a retrofit main component part of a weapon, which replaces a corresponding original main component part of the weapon. The safety means is preferably controllable by a transponder.

Abstract: A device for recording and displaying data from the firing cycle of small-arms that senses when a shot has been fired from a weapon using its acceleration, acoustic noise, or RF emissions; measures the interval between shots so that the firing rate may be determined; measures the time at which each shot has been fired; measures the number of rounds fired and deducts that number from a predetermined total thus displaying the remaining number of rounds contained within the weapon's magazine in real time to the operator; stores any combination of firing rate, firing intervals and time data for subsequent analysis and has an electrical interface to transfer data from the device to a computer or other data collection device.

Abstract: A video camera and recording device integrated with a real or toy weapon to provide video recording of the assault and aiming process of the weapon holder in operational training, actual combat, hunting, sports and gaming scenarios. A video camera is boresighted with the weapon, and a video memory stores the recorded dynamic scenario, and a trigger sensor which continually senses and records the triggering actions imposed by the weapon holder. The trigger sensor is attached to the actual trigger of the weapon thus enabling normal operation of the weapon. The video camera, may be mounted internally within the bore of the weapon, such that the external form of the weapon is not altered, thus achieving closer operation to real life situations. The recorded trigger data is utilized upon playback of the recorded video, enabling quick review and scoring of the recorded aiming process for training and gaming.

Abstract: A counting mechanism for detecting and registering the number of rounds fired from a recoil gun includes a housing that can be mounted to a component of the gun that exhibits recoil motion upon firing of a round. A counting device is contained within the housing and includes an actuator that is activated by the recoil motion of the gun component upon a round being discharged. A weighted mass is movable within the housing with the recoil motion of the gun component, and the actuator is operably configured with the mass such that movement of the mass resulting from the recoil motion actuates the actuator and increments the counting device.

Abstract: A counting mechanism for detecting and registering the number of rounds fired from a recoil gun includes a housing that can be mounted to a component of the gun that exhibits recoil motion upon firing of a round. A counting device is contained within the housing and includes an actuator that is activated by the recoil motion of the gun component upon a round being discharged. A weighted mass is movable within the housing with the recoil motion of the gun component, and the actuator is operably configured with the mass such that movement of the mass resulting from the recoil motion actuates the actuator and increments the counting device.

Abstract: Device for detecting and counting shots fired by an automatic or semi-automatic fire arm with a barrel and moving parts to recock the fire arm, sliding in the axial direction (Y-Y?) of the barrel between a front position and a rear position, whereby the fire arm undergoes accelerations in the axial direction (Y-Y?) of the barrel for every fired shot, caused by a succession of shocks due to the shot being fired and to the movements of the moving parts, whereby the progression in time of the accelerations is typical for a fire arm and for the type of ammunition used, thus forming a typical signature for the fire arm and for the type of ammunition, characterized in that it comprises an accelerometer (2) with a pass band which is sensitive to shocks in the axial direction (Y-Y?) of the barrel and a microprocessor (3) for analyzing the signal (S) of the accelerometer (2) while firing, whereby the microprocessor (3) is equipped with an algorithm to count the number of shots fired, based on the discernment and recor

Abstract: A firearm measuring device for measuring all external dimensions of a firearm is comprised of an elongated rectangular caliper body member having measurement indicia inscribed thereon. A pair of jaws affixed on the caliper body member, one jaw affixed to a carriage and moveable along the caliper body member, a second jaw permanently affixed at one end of the caliper body member. A drop meter affixed to the caliper body member adjacent to the fixed jaw and vertically adjustable along the length of the drop meter by a channel within the length of the drop meter. The drop meter having a measurement indicia inscribed thereon. An extension member for attachment to the caliper body member having a bottom tooth-shaped configuration which is positioned on a gun barrel. The extension member having a magnetic means recessed within the extension member for securing the extension member in combination with the caliper body to the gun barrel eliminating need of holding the device during operation.

Abstract: This invention is intended to provide an identifiable bullet which is unduplicatable by a third party. The means is to place plural (two or more) kinds of identification codes onto or into a bullet and to make the identification codes mutually related. By this means the bullet remains identifiable. Next, the means is to make at least one kind of the identification code or codes ciphered. By this means the mutual relations among the identification codes become confidential to a third party, so that the bullet becomes unduplicatable. In one embodiment, each identification code is placed in a different kind of material, and this enables an investigator to detect and compare the identification codes more easily after shooting of the bullet. In another embodiment, each kind of identification code or codes is placed in a different kind of material.

Abstract: Device (12) for counting shots fired by an automatic firearm (11), having a cartridge chamber containing a cartridge that can be expelled through an expulsion window and a first emission means that emits a continuous electromagnetic signal in such a manner that it is interrupted by a casing expelled from the cartridge chamber which corresponds to the used cartridge. The shot-counting device (12) of the invention is capable of monitoring the number of casings expelled from a cartridge chamber of the firearm (11) via an expulsion window and showing, on a display screen, the corresponding number of shots left available in a magazine (13) fitted to the firearm (11).

Abstract: Determining cook-off time for a weapon is disclosed. A method determines a first barrel temperature next to a first energetic, such as a propellant charge, of ammunition within a gun barrel, and determines a second barrel temperature next to a second energetic, such as an explosive charge, of the ammunition. If the ammunition did not properly fire, the method determines a first cook-off time of the first energetic based on the first temperature next to the first energetic and the first energetic's type, and a second cook-off time of the second energetic based on the second temperature next to the second energetic and the second energetic's type. The first and second times may be determined by using one or more finite-difference heat transfer models. If either or both of the first and second times are less than a threshold, a warning-related action is performed to users of the weapon.

Abstract: This identifiable bullet which is unduplicatable by a third party places plural (two or more) sets of identification codes onto or into a bullet and to make the identification codes in concordance. Thus, the bullet remains identifiable. At least one set of the identification code or codes can be encrypted. In this way, the mutual relations among the identification codes become confidential to a third party, so that the bullet becomes unduplicatable. In one embodiment, each identification code is placed on a different kind of material, and this enables an investigator to detect and compare the identification codes more easily after shooting of the bullet.

Abstract: An indicia for marking on an object, such as a cartridge case, for representing selected information, such as identification indicia identifying the firearm that discharged the cartridge, and methods and apparatus for generating, imprinting and reading the identification indicia. An indicia includes a multi-dimensional array of encoded marks, including encoded marks determined by spectral encoding variables representing the selected information wherein each spectral variable is spectrally distinguishable from others of the spectral variables representing variables, and an encoded pattern of the encoded marks is determined by algorithmic transformation of the selected information. An indicia may also include hologram related artwork. An indicia may be an encoded hologram multi-dimensional barcode, an encoded hologram or an encoded concentric circular barcode and may be formed of a single indicia or as an array of indicia.

Abstract: Determining cook-off time for a weapon is disclosed. A method determines a first barrel temperature next to a first energetic, such as a propellant charge, of ammunition within a gun barrel, and determines a second barrel temperature next to a second energetic, such as an explosive charge, of the ammunition. If the ammunition did not properly fire, the method determines a first cook-off time of the first energetic based on the first temperature next to the first energetic and the first energetic's type, and a second cook-off time of the second energetic based on the second temperature next to the second energetic and the second energetic's type. The first and second times may be determined by using one or more finite-difference heat transfer models. If either or both of the first and second times are less than a threshold, a warning-related action is performed to users of the weapon.

Abstract: A method and apparatus for installing a fixture, such as a flash suppressor, to the threaded muzzle end of a firearm barrel. A chart or “timing wheel” is directly placed to the fixture when hand tightened to the firearm's muzzle end without any shims placed thereon, the chart identifying the appropriate shims to be placed on the barrel's threaded muzzle end portion for positioning the center of the flash suppressor vent substantially at top dead center with respect to the barrel when a predetermined torque is applied to the flash suppressor.

Abstract: According to the present invention a firearm device comprises a firearm; safety means for impeding an unauthorized person to fire the firearm; and information storage means for recording and storing at least one aspect of the group consisting of an image in the direction in which a shot is in use fired, sound at about the time when a shot is in use fired, time when a shot is in use fired, and location of the firearm.

Abstract: A night-vision optical device of the invention with controlled life expectancy contains a time measuring device built into the housing of the aforementioned device for measuring the accumulated time of active work of the device. In application to a night scope for a firearm, the device also contains a sensor, which is interlocked with activation of the scope and reacts on the shots produced from the firearm in general and separately on those shots produced during active work of the night-vision optics at nighttime. The aforementioned shots of both types are counted and stored in separate memory units. The night-time shots affects the life expectancy of the night-vision optics because of muzzle flashes which cause such devices as an image intensifier to work with an increased light load. The information obtained from the time measuring device and the shot counter makes it possible to timely receive a warning signal about the fact that the night optics or the entire firearm must be replaced.

Abstract: A firearm comprising a gun barrel for accommodating a desired round of ammunition having a bullet, a shell casing and a primer. The gun barrel has a firing pin associated with a chamber of the gun barrel and the firing pin is activated by a trigger assembly. When the firing pin is activated by the trigger assembly, a striking surface of the firing pin strikes the primer and discharges the round of ammunition to propel the bullet out of the opposite end of the gun barrel. The firing pin, the interior surface of the barrel, or some other surface which contacts the shell casing carries a unique identifying indicia. Upon discharge of the round of ammunition, the component of the firearm carrying the unique identifying indicia transfers an impression of the unique identifying indicia to an exterior surface of the shell casing to identify that the shell casing was discharged by that firearm.

Abstract: An authorization control system controlling who may use a device, includes a device for storing personal code data, a signal provider for outputting signals representing the personal code data, a signal delivery interface for receiving signals representing the personal code data, and adapted for wear by a user in proximity to a body of the user, a signal receive interface means, connected to the device, for receiving the signal from the signal delivery interface, a signal processing device, connected to the signal receive delivery interface, for determining a user's authorization for using the device by evaluating the signals and outputting a signal indicative of an evaluation result, a control device connected to the signal processing device, and an actuator for the device coupled to the control device, for allowing the user to use the device based on an output of the control device. Thus, the system allows a person to use the device only after the person has completed a successful authorization check.

Abstract: A system and method are disclosed for identifying a firearm by markings on the inside of the firearm. The markings leave an impression on the bullet casing, allowing the firearm to be identified from the markings left in the bullet casing. The markings could be symbols, characters, or a combination thereof. Tools for marking the firearm are also disclosed.

Abstract: This invention refers to a compact monitoring system for firearms, including a detecting and tracking structure and a method for confirming ammunition has been discharged from said weapon, more specifically, to a weapon usage detecting and tracking device and a method that utilizes battery operated microcontroller circuitry, and could be used in combination either with a load depletion process warning system which in turn comprises a method for signalizing the user of the depletion process using luminous indicators, and a time and date event recorder or in combination with both, sharing substantially the same structure. Provisions are made in the time recording structure to securely retrieve use information at a further date in a way that may include secure handshaking and a serial number.

Abstract: A device for firearms (1) and a firearm (1) having this device are disclosed. The device is used for detecting a state in the space (10) and for transmitting a signal correlated to the state. The device has a sensor region (24.1, 24.2) for detecting the state and a conductor arrangement (24.3), connected to the sensor region (24.1, 24.2) for transmitting the signal. The sensor region (24.1, 24.2) and the conductor arrangement (24.3) are formed by a fiber-optic system (24). The device also has a movable indicator (17), whose position corresponds to the state to be detected in the space (10) to be monitored and is detectable by the sensor region (24.1, 24.2). The sensor region (24.1, 24.2) of the fiber-optic system is protected by a shield (20).

Abstract: The invention is a firearm safety indicator that is spring-loaded, thus enabling self-ejection when a firearm's bolt is actuated. To attain this, the indicator comprises a main body and cantilever spring body joined together. A peg extends perpendicularly from the main body. In use, the peg is positioned inside the firing chamber of a firearm through the ejection port. The main body covers the ejection port and the cantilever spring body is therefore compressed to attain proper positioning. The rifle's bolt is then used to engage and hold the peg in place. When actuated, the bolt releases the peg and the spring body is released, thrusting the indicator away from the firearm. Alternately, a metal spring may be utilized in the place of the cantilever spring body.

Abstract: A safety device for use with a toy guns, less-lethal guns (such as non-powdered guns) and lethal guns detects motion of the gun, and causes light emitting diodes or other light sources incorporated into the gun to prominently flash. The flashing light sources alert bystanders in a way that distinguishes lethal firearms from toy guns and less-lethal guns. The flashing diodes can also be activated when the gun is armed, cocked or otherwise ready to be fired. Motion is detected through the use of an electric circuit that includes a spring, an oscillating mass, and a ring adapted to surround the oscillating mass.

Abstract: An electronic device with a concealed firearm. The device includes a housing having an interior face and an exterior face and with a cavity therein. The housing has a plurality of buttons and digital electronics. A tubular wall with a rigid central bore is adapted to function as the barrel of a firearm. The tubular wall has an interior end communicating with the cavity and an exterior end communicating with exterior of the housing. A chamber is provided for receiving a bullet adjacent to the interior end of the bore. A striker element is positioned at the end of the bullet with a point adapted to strike the shell to discharge the bullet and propel the slug thereof outwardly therefrom. An actuator is located on the side of the striker remote from the bullet to initiate movement of the striker element. A mechanism, when activated, is adapted to release the actuator to move the striker element and discharge the bullet.

Abstract: A gun suitable for games is disclosed for permitting an operator to recognize when a trigger is pulled. A target signal receiver receives a target signal sent from a target for causing the gun to recognize that the gun is opposite the target, and notifies a controller that the target signal receiver has received the target signal. Upon detection of a manipulation by the operator, the controller a forces shooting device to perform a shooting operation, and instructs an information generator to generate recognition information. The shooting device emits an optical bullet formed of a light ray. The recognition information generator drives a solenoid to bring associated members into impact against each other to permit the operator to recognize that the operation has been performed.

Abstract: A safety device for use with a toy guns, less-lethal guns (such as non-powdered guns) and lethal guns detects motion of the gun, and causes light emitting diodes or other light sources incorporated into the gun to prominently flash. The flashing light sources alert bystanders in a way that distinguishes lethal firearms from toy guns and less-lethal guns. The flashing diodes can also be activated when the gun is armed, cocked or otherwise ready to be fired. Motion is detected through the use of an electric circuit that includes a spring, an oscillating mass, and a ring adapted to surround the oscillating mass.

Abstract: A paint ball gun includes an agitator mounted on the end of a rotary motor shaft. Rotational direction of the motor shaft is controlled by an electronic circuit responsive to a tilt sensor. The inclusion of tilt sensor provides an enhanced paint ball gun capable of operating optimally during periods of gun tilt. Several preferred magazine designs incorporating the tilt sensor are illustrated. An additional double-rotation of the motor is disclosed which enables short bursts of oppositely directed agitator rotation, which frees any jams that may occur. These short bursts may be triggered manually, electronically responsive to a sensed condition indicative of a jam, or through a timed interval. The paint ball gun is capable of rapidly firing more paint balls under otherwise sub-optimal conditions than previously known in the art.

Abstract: Portable firearms having identification marks and methods of making the same are disclosed. An example firearm includes a first identification number visibly located on the firearm; and a second, hidden or disguised identification number associated with the first identification number to facilitate identifying the firearm if the first identification number is destroyed, changed, or damaged.

Abstract: A hand-held stun gun incapacitates a human target by generating a series of powerful electrical output pulses across first and second spaced apart output terminals in response to closure of a trigger. A battery power supply includes an electronic switch, an energy storage capacitor and a transformer for converting low voltage, direct current into a series of high voltage output pulses across the first and second output terminals. Each output pulse includes a pulse energy of from 0.9 joules to 10 joules. The series of output current pulses have an RMS current flow of from 100 milliamps to 500 milliamps when the first and second output terminals are applied to a human target.

Abstract: In a weapon, in particular a self-loading pistol, having a barrel (1) and a breech block (4), it being possible for a cartridge (2) to be fired in the barrel (1) by being acted upon by means of a firing pin (7), to identify a fired cartridge (2) and/or to increase the precision during the shot, a contact region (10) of the breech block (4) with the cartridge (2) has at least one prominence (11) and/or recess (12).

Abstract: A universal electronics system has a body adapted to be removably mounted at the muzzle end of the barrel of almost any paintball marker. A pair of spaced detector units signal the time it takes for a paintball to pass through a portion of the body. A muzzle velocity calculating device converts the detector signals to a muzzle velocity, which is displayed on a display screen. The universal electronics system may further comprise a ball counter, a player counter, a clock, a chronometer that records elapsed time, a timer for recording time remaining in a game, and a thermometer. All of the data can be displayed on the display screen.

Abstract: A gun handling deterrent device includes a housed, battery-powered electrical assembly for placement within the gun handle, with sub-assemblies to convert the DC to pulsating DC and step up the voltage, and leads to the gun frame and a negative contact member that extends from the handle for positioning adjacent the handle, trigger guard and barrel, such that when the handle, trigger guard or barrel is grasped, the hand contacts both the metal frame and the negative contact member. An actuator switch enables the circuit when the gun is moved from a horizontal position, causing the increased voltage pulsating DC to be delivered to the hand. The shock function is joined or replaced in embodiments where an audio generating device is activated by the actuator switch when the gun is so moved.

Abstract: A firearm comprising a gun barrel for accommodating a desired round of ammunition having a bullet, a shell casing and a primer. The gun barrel has a firing pin associated with a chamber of the gun barrel and the firing pin is activated by a trigger assembly. When the firing pin is activated by the trigger assembly, a striking surface of the firing pin strikes the primer and discharges the round of ammunition to propel the bullet out of the opposite end of the gun barrel. The firing pin, the interior surface of the barrel, or some other surface which contacts the shell casing carries a unique identifying indicia. Upon discharge of the round of ammunition, the component of the firearm carrying the unique identifying indicia transfers an impression of the unique identifying indicia to an exterior surface of the shell casing to identify that the shell casing was discharged by that firearm.

Abstract: A computer-controlled laser etching probe etches a firearm-identifying indicia such as a barcode encoded serial number into the bore of a firearm. Owner registration data coupled with the serial number is stored in a central database. A computer-controlled scanner reads the barcode from a bullet fired from an etched firearm for comparison with registration data in the central database, thereby identifying the registered owner of the firearm from which the bullet was fired.

Abstract: There is described a smart weapon system including a weapon which serves as an enclosure to a transferable core computer. The computer provides the operator of the weapon the advantages of having an integrated computer/communications platform contained within the weapon and thus reducing the burden placed on the operator to carry multiple and distinct computer/communication devices.