Abstract: A laser mandrel system that self-centers within a hosel bore of a golf club head to allow for precision adjustment of lie and loft is disclosed herein. The mandrel includes a one-piece housing with upper and lower portions, a laser centered within the upper portion of the housing, and a plurality of o-rings extending around an exterior or interior surface of a lower portion of the housing.

Abstract: A laser mandrel system that self-centers within a hosel bore of a golf club head to allow for precision adjustment of lie and loft is disclosed herein. The mandrel includes a one-piece housing with upper and lower portions, a laser centered within the upper portion of the housing, and a plurality of o-rings extending around an exterior or interior surface of a lower portion of the housing.

Abstract: Debris control apparatus for a rocket propelled grenade launcher including a plug configured to be inserted into an opening at a rear end of a tube assembly of the rocket propelled grenade launcher, the plug forming an aperture at about the center thereof. A front cover configured to be coupled with a front end of the rocket propelled grenade launcher and configured to cover an inlet, at the front end, that receives a rocket propelled grenade. The front cover is configured to provide cross-hairs and the aperture cooperating to provide, when a target is provided down range at a predetermined distance, a bore sight with the cross-hairs and the front cover and plug cooperatively, when installed, seal the rocket propelled grenade launcher assists in preventing ingress of debris.

Abstract: Sighting devices and cartridges for a firearm comprising an internal sighting and aiming system which incorporates and leverages electromagnetic radiation as the means for aiming the firearm. The sighting and aiming system must first be placed in the chamber of a firearm to be functional. It is activated and deactivated by the angle at which the firearm is held.

Abstract: A cartridge laser trainer fits into a gun barrel and includes a backer, circuit and a laser. When the firing pin of the gun is activated it strikes the backer, which contacts the circuit and activates the laser. The cartridge laser trainer may also have one or more O-rings to keep it positioned properly in the gun barrel. Also disclosed are kits that contain (1) a plurality of sheaths and a cartridge laser trainer, or (2) a plurality of O-rings and a cartridge laser trainer. Each sheath or O-ring(s) is configured to be positioned in a particular-sized gun bore and is configured to receive a cartridge laser trainer. With a kit, a single cartridge laser trainer can be used with more than one size of gun bore.

Abstract: A boresight verification device (BVD) comprised of a circular housing with a rear portion of smaller diameter and a front portion of larger diameter. The front portion securely holds a level. The circular housing also contains a plurality of spring plungers which grip the inside of a muzzle when BVD is inserted into a muzzle for use. A tooling ball provides a stable reference point.

Abstract: A caliber specific drill cartridge and an adaptor assembly for transforming the caliber specific drill cartridge for use in a first firearm chamber into a caliber specific drill cartridge assembly for use in a second firearm chamber. The adaptor assembly may include a drill cartridge having a first central axis, a rear casing, and a front casing with a first maximum outer dimension perpendicular to the first central axis. The front casing may be connected to the rear casing such that the front and rear casings cooperate to form a housing, which may be configured and dimensioned for chambering in a first firearm chamber. The adaptor assembly further may include a cartridge specific adaptor with a second central axis. The drill cartridge and the cartridge specific adaptor may be combined such that the adaptor assembly is configured and dimensioned for chambering in a second firearm chamber.

Abstract: A caliber specific drill cartridge and an adaptor assembly for transforming the caliber specific drill cartridge for use in a first firearm chamber into a caliber specific drill cartridge assembly for use in a second firearm chamber. The adaptor assembly may include a drill cartridge having a first central axis, a rear casing, and a front casing with a first maximum outer dimension perpendicular to the first central axis. The front casing may be connected to the rear casing such that the front and rear casings cooperate to form a housing, which may be configured and dimensioned for chambering in a first firearm chamber. The adaptor assembly further may include a cartridge specific adaptor with a second central axis. The drill cartridge and the cartridge specific adaptor may be combined such that the adaptor assembly is configured and dimensioned for chambering in a second firearm chamber.

Abstract: A projectile cartridge device designed with internal sighting and aiming system, which incorporates and leverages electromagnetic radiation as the means for aiming the projectile.

Abstract: Apparatus and method for a firing pin sight system. At least one rearwardly facing sight is located at a rear contact surface of a firing pin of a firearm. The at least one rearwardly facing sight is viewable to a shooter from the rear of the firearm. The at least one rearwardly facing sight forms a high contrast surface (in respect the rear surface of the firearm) allowing the shooter to align the at least one rearwardly facing sight point with a target located in front of said firearm. An optical alignment signaling indicia indicates to the shooter when the aim line of the handgun is either off-sight alignment or on-sight alignment.

Abstract: The invention is directed to a coaxially arranged, off-axis optical system for a sighting device or aiming device. It is the object of the invention to provide a possibility for constructing an optical system in such a way that the typical disadvantage with respect to the tightness of a sighting device in an open-type construction is overcome and a good flattening of the image field is achieved in addition to the high optical imaging quality of the aiming mark. According to the invention, by means of a coaxially arranged, off-axis optical system for a sighting device or aiming device comprising a lens group, wherein the lens facing the target object is constructed as a converging meniscus and the lens facing the eye is constructed as a diverging meniscus, with a dichroic reflector and an embodiment for the aiming mark, the above-stated object is met in that a correction lens with positive refractive power is arranged at a distance of less than 0.

Abstract: The boresight laser aiming system for firearms provides a laser aiming beam through the mechanical action (20), chamber, and barrel (36) of the operable firearm (10) and through a specially configured live rimfire cartridge within the chamber, enabling a marksman to place the laser upon the target and fire the weapon simultaneously. The laser device (12) may be installed concentrically with a light passage through the bolt (22), hammer, or other mechanism of the firearm, or may be offset with the light path guided by one or more reflective mirrors, prisms, etc. The firearm may comprise a rifle (10), semiautomatic pistol, revolver, etc. The live cartridge has concentric inner and outer tubes defining a toroidal explosive charge-containing chamber therebetween and a light passage through the innermost tube, and a bullet having a passage therethrough allowing light to pass through the live cartridge assembly when placed in the firearm chamber.

Abstract: An apparatus is provided for traversing a barrel of a gun and disposing at a select position therein. The apparatus includes a bore-rider assembly and a sight-mount assembly. The bore-rider assembly enters a muzzle of the barrel, slides within a bore of the barrel, and anchors to the select position. The sight-mount assembly projects a line-of-sight from the select position to the muzzle. The bore-rider assembly includes a rod having wedges, first and second bore-riders with proximal and distal ends, a sleeve couple that joins at axial ends the bore-riders in tandem from their proximal ends. Each bore-rider has a rim at the distal end and an extension at the proximal end. The rim has an outer diameter adjustable by expansion. The sleeve couple joins in tandem at each axial end each bore-rider from the proximal end. The rod passes through each bore-rider and the couple. The rod includes first and second wedges that engage their corresponding bore-riders.

Abstract: An apparatus for measuring the azimuth of a tube having a bore axis includes a centering mandrel having a longitudinal axis; a flexible member for defining a bore axis projection of the bore axis; a tensioner fixed to one end of the flexible member, and a pair of adjusters connected to the tensioner, the adjusters for moving the tensioner along a respective pair of axes that are perpendicular to the bore axis projection, the axes of the adjusters being mutually perpendicular.

Abstract: A laser sight is coupled to a gun with a connecting rod; the connecting rod includes a rod body, and an expanding and fixing sleeve having a truncated-cone shape; the rod body is passed through the sleeve, and the sleeve is inserted in a joining hole of the gun; the rod body has a front threaded portion threadedly joined to the laser sight, a middle truncated-cone shaped section, and a male threaded portion adjoining the truncated-cone shaped section; the expanding and fixing sleeve has a lengthways extending gap thereon, and a truncated-cone shaped hole receiving the truncated-cone shaped section of the rod body; the taper of the truncated-cone shaped section of the rod body matches that of the truncated-cone shaped hole of the sleeve; the sleeve has a female threaded portion in the truncated-cone shaped hole, which is threadedly engaged with the male threaded portion of the rod body.

Abstract: A periscope device specifically adapted to fit in the breach of a firearm. Using a housing equipped with at least a pair of mirrors in parallel relation to one another, a user can look down the barrel of his or her firearm. This is especially useful for checking the barrel for obstructions and for initially bore sighting the firearm when conducting gun sight alignment.

Abstract: A device facilitates adjustment of a sight on each of a variety of firearms having different calibers by providing a visible mark on a target when the device is placed within a chamber of any of the firearms. The device includes a housing, and a laser module energizeable within the housing to produce the mark at a position along a laser axis extending through the firearm's barrel. An outer sleeve fits snugly around at least a portion of the housing, and has an external shape sized to fit snugly within a chamber of predetermined caliber for one of the firearms. A power supply situated either within the housing or within the sleeve electrically energizes the laser module.

Abstract: A device for adjusting the relative positions of a first module and a second module on a firearm system includes an intermediate barrel adapted for mounting to the firearm system such that an axis of the intermediate barrel is fixed relative to the first module. A first adjusting cam is rotatably supported on the intermediate barrel and operatively engages the second module at an attachment point so as to displace the attachment point along a first adjustment line in response to rotation of the first adjusting cam. A second adjusting cam is rotatably supported on the intermediate barrel and is rotatable independently of the first adjusting cam. The second adjusting cam operatively engages the second module at the attachment point and is arranged to displace the attachment point along a second adjustment line in response to rotation of the second adjusting cam. The first and second adjustment lines are non-parallel to each other.

Abstract: A firearm bore sighting system is described in which conventionally shaped cartridge body with a rim at a base end and an open forward end includes a bore formed along a cartridge axis. An optical beam emitting device is received within the bore, with potting material formed about the beam emitting device, securing the beam emitting device in a spatial relation to the cartridge axis such that an optical beam emitted from the beam emitting device is coaxial with the cartridge axis.

Abstract: An optical collimator device for use in aligning a gun bore with a gun sight is formed of a graticule and lens which are located within the optical collimator device housing.

Abstract: The apparatus is an adjustable front sighting system for a shotgun. Interchangeable rings, each with a sight point mounted at a different height above the rings, are slipped over the discharge end of a tube attached to the muzzle of a shotgun and clamped in place by a threaded nut. The shotgun's elevation can thus be adjusted by interchanging rings with sight points at differing heights, and windage can be adjusted by rotating any installed ring in an arc to the left or right.

Abstract: A firearm bore sighting system is described in which conventionally shaped cartridge body with a rim at a base end and an open forward end includes a bore formed along a cartridge axis. An optical beam emitting device is received within the bore, with potting material formed about the beam emitting device, securing the beam emitting device in a spatial relation to the cartridge axis such that an optical beam emitted from the beam emitting device is coaxial with the cartridge axis.