Abstract: A handguard system for connecting an accessory to a firearm has a tubular body having a bore size to closely receive the body of the barrel nut. The tubular body has a tapered wedge portion that defines a gap therein. There may be a tapered clamp element adapted to fit over the wedge. The clamp element may be operable to squeeze the gap as the clamp element is pushed onto the wedge. The squeezing of the gap is operable to clamp the tubular body to the body of the barrel nut. The tubular body and the body of the barrel nut may each include a mating feature that prevents longitudinal movement of the tubular body while the mating features are engaged. The tubular body and the upper receiver may each include a mating feature that prevents rotational movement of the tubular body while the mating features are engaged.

Abstract: An extreme duty machine gun barrel has body having a central bore. The rear opening of the body includes a chamber formed to receive a cartridge. The body has a surface layer covering all surfaces of the body. The body has a diffusion layer extending below the surface layer into an underlying material of the body. The central bore may have rifling defined by lands and grooves formed in the bore. An interior portion of the body may have a hardness of at least 50 HRC and not greater than 55 HRC after the surface layer and diffusion layer are created on the body. The surface layer and diffusion layer may be created by subjecting the body to a ferritic nitrocarburizing treatment followed by an oxy nitrocarburizing treatment. The nitrocarburizing treatments may be repeated. The body may be AISI H13 grade tool steel.

Abstract: A minigun having a plurality of barrels. At least one barrel has a lug. A barrel clamp is attached to the barrels. The barrel clamp has a rear portion with apertures to receive the barrels. The barrel clamp has a front portion with apertures to receive the free end of the barrels. A clamp collar captures both the rear portion of the barrel clamp and at least one lug. The clamp collar may have two parts that are hingedly attached at one end and releasably pinned at the other end. Each of the two parts may have two flanges. The two flanges may be spaced apart by a distance defined by the barrel clamp's length. Each of the flanges may include a plurality of scallops. The clamp collar and the barrel clamp may each include a plurality of apertures that are aligned when the clamp collar is closed.

Abstract: A folding rifle stock has a forward portion for securing to a rifle action having a barrel and trigger. The stock has a rear portion having a shoulder-engagement surface. The forward portion and rear portion are pivotally connected and movable between an extended position and a folded position. The rear portion includes a grip positioned adjacent to a trigger location on the front portion, so that a finger on a user's hand gripping the grip may operate the trigger when the stock is in the extended position. The hinge may be directly connected to a metal bedding block in the front portion. The hinge may be adjustable to take up slack due to wear, with a tapered hinge pin, and with one hinge portion configured to selectable clamp a threaded portion of the hinge pin. The hinge may include a latch to lock the stock in the extended position, and the lock may include a wedging cam element to generate torque to bias the stock to the extended position.

Abstract: Bullet feed die assemblies include a die defining an interior passage that encloses a first collet and a second collet. The first collet defines a first bullet passage bore, and the second collet defines a second bullet passage bore. The first collet and the second collet are positioned coaxially within the interior bore of the die. The collets are operably engaged to generate bore expansion of one of the bullet passage bores and bore restriction of the other bullet passage bore upon application of an axial force to the collets.

Abstract: The present invention provides a sighting device for a firearm having a trigger guard, a frame with an underside portion forward of the trigger guard, and a handgrip with a front strap. The sighting device has a body having a first portion including an illumination device. The body defines an engagement feature operable term the bubbly connectivity for portion of the trigger guard. The body has an elongated extension portion that extends from the first portion. The extension portion is shaped to underlie a lower portion of the trigger guard from the first portion to the front strap. The extension portion has a free end including a switch, and the extension portion includes a conductor operably connecting the switch to the illumination device.

Abstract: A high-visibility gunsight has a body defining a vertical plane and having a vertically elongated rear face. The body extends from a lower base portion to an upper free end portion. A first visibility-enhancing element and a second visibility-enhancing element are connected to the body. The visibility-enhancing elements have different visibility enhancing properties. The visibility-enhancing elements are vertically aligned with each other and centered on the vertical plane. The body has a greater thickness lateral to the vertical plane at the base than at the free end. The invention also includes a rear sight operable to be aligned with the front sight along an aiming axis to form a gunsight system.

Abstract: Rifle scopes with adjustment stops include a scope body, a movable optical element defining an optical axis enclosed by the scope body, and a turret having a screw operably connected to the optical element for adjusting the optical axis in response to rotation of the screw. The turret has a stop element selectably engaged to the screw. The body defines a stop surface positioned for engagement by the turret stop element to limit rotation of the screw, such that the relative position at which the stop element is secured to the screw defines a zero position of the screw and the movable optical element. The stop element is held against the stop surface by an indexing portion while the relative position at which the stop element is secured to the screw to define the zero position is determined.

Abstract: A bullet or a cartridge containing a bullet having an elongated body with a forward end and an opposed rear end. The body has an intermediate cylindrical portion between the rear and forward ends, and the front end of the body defines a cavity. A resilient nose element is received in the cavity. The nose element may be an elastomer, and may be a cylindrical body. The cavity may be a cylindrical bore, and the nose element may be closely encompassed within the bore. The forward end of the nose element may be flat, and may be flush with the forward end of the body.

Abstract: A holster for retaining a pistol has a frame configured to receive a pistol, with a first pistol retention facility on the frame. The first pistol retention facility has a secure condition and a release condition, and operates operable to prevent extraction of a pistol from the holster when in the secure condition, and to enable extraction of the pistol when in the release condition. The first pistol retention facility includes a first actuator operable in response to deliberate user force to set the first pistol retention facility in the release condition. The holster has a second pistol retention facility on the frame, and having a secure condition and a release condition, and operable to prevent extraction of a pistol from the holster when in the secure condition, and to enable extraction of the pistol when in the release condition.

Abstract: A process for generation of electrical power comprises the exothermic, possibly catalytic, decomposition of a medium, preferably hydrogen peroxide, with the addition of water and the use of the steam to drive a steam machine, which is connected to an electricity generator. In order to improve the process specifically for use in electrical vehicles, highly concentrated medium, preferably hydrogen peroxide, is decomposed and the steam is condensed after emerging from the steam machine, and is fed back into the process. An electrical vehicle is advantageously operated in such a way that the electrical power is generated as explained above and is fed to at least one rechargeable battery, with the electrical power for at least one electric motor being taken from the rechargeable battery.

Abstract: A monocular with attachment points has a tubular frame with a hard point attached to its exterior an optical axis defined by its center axis. A clip may have one end connected to the hard point. There may be two hard points attached to the frame's exterior, and the clip may be operable to detach from and reattach to either of the hard points. The hard points may be arranged in pairs on opposite sides of the frame's exterior. There may be a hand strap operable to detach from and reattach to any of the pairs of hard points. There may be a mounting surface rigidly connected to the frame's exterior. The mounting surface may be parallel to the optical axis and operable to receive a tripod mount and a picatinny rail mounting plate.

Abstract: A multifunction tool kit for firearm maintenance has a main tool body having one or more facilities for connection of various tool components. The present invention may include a first tool component having an attachment facility adapted to removably connect to one of the facilities for connection of the main tool body. At least one of the opposing ends of the first tool component may terminate in a feature adapted to fit one or more components on a firearm. A feature may be exposed and extend outwards from the opposing sides of the main tool body when the first tool component is connected to the main tool body. The invention may also include additional tool components, such as a thread protector, an alignment gauge having a grease pot with grease cap, a throat erosion gauge, a spacer with pin punch, a stock liner tool, a muzzle wear gauge, and a handle.

Abstract: The manufacturing method of a probe with printed tip consists of a substrate having a plurality of probe tips connected to its end edge, a plurality of test paths, each connected to one of the probe tips and extending along the substrate, and at least one of the test paths including an electrical component adjacent to the test path's probe tip. The electrical component may be a resistor. The probe tips may have a width equal to the thickness of the substrate. The probe tips may consist of a plurality of probe tip layers. The invention also includes a method of probing signals transmitted over target transmission lines on a target board. The disclosure also includes a method of manufacturing the claimed invention.

Abstract: A rifle telescope has optics having an optical axis, a scope support portion that supports the optics, and a base portion that mounts to a firearm having a barrel axis. The scope support portion has at least two different settings, each setting providing a different angle between the optical axis and the barrel axis. The invention may also include each setting being a discrete fixed setting. The present invention also includes a method for adjusting the angle mount of an adjustable rifle telescope with multiple fixed angle mount setpoints.

Abstract: A flash suppression system for increasing the reliability of an autoloading firearm has a body having a central bore including the front opening and a rear opening. The rear opening of the body terminates in a conical feature having a front opening and a rear opening. The central bore of the body receives the rear opening of a conical element. The rear opening of the conical element is positioned within the central bore of the body to create a gap between the front opening of the conical feature and the rear opening of the conical element. The front opening of the conical feature has a larger diameter than the rear opening of the conical element.

Abstract: A moving target system for defensive training includes an elongated ground-based track defining a track axis, a trolley operable to move along the track, the trolley having a target support facility, a driver operable to move the trolley along the track, and the target facing in a direction angularly offset from perpendicular to the track axis. The target support facility may be operable to fall from a vertical position when the trolley reaches an end of the track. There may be an actuator operably connected to the driver to initiate movement of the trolley when actuated.

Abstract: A submachine gun target system has a target support having a target attachment facility and a target having an attachment element. The target attachment facility may have a first position and a second position, such that the target may be suspended from the target attachment facility with the attachment element residing at the first position or the second position. The target attachment facility may have a retention surface operable to retain the target attachment facility in the first position in response to a bullet strike on the target. The retention surface may be in a forward direction from the second attachment position, such that the retention element does not prevent the target attachment element from being dislodged from the attachment facility when residing at the second position in response to a bullet strike on the target from the forward direction.

Abstract: A bolt action rifle with safety latching mechanism has an upper receiver including a movable bolt assembly, a lower receiver having a trigger assembly and releasably attached to the upper receiver, the bolt assembly movable between a cocked position and an uncocked position, and the upper receiver and the lower receiver including a latching mechanism operable to prevent the lower receiver from being detached from the upper receiver while the bolt assembly is in the cocked position.

Abstract: A system and method for quickly refilling a pressurized irritant dispenser is disclosed. In the system and method, either the dispensing nozzle or the connection between the dispensing nozzle and the valve assembly is replaced with a quick connect fitting. The quick connect fitting allows for both the quick refill of irritant and the quick attachment (and detachment) of various accessories to the pressurized irritant dispenser.