Abstract: A level indicator system for an aiming system comprising a base assembly, a level assembly. The base assembly comprises a base member defining a base axis, a plate, and a support member. The level assembly comprises a level indicator defining a level axis. The base member and the plate support the support member such that a location of the plate relative to the base member is adjustable. The support member supports the level assembly such that a location of the level axis relative to the base axis is altered when a location of the plate relative to the base member is adjusted.

Abstract: An ejector system for ejecting/separating a store, such as a weapon, from a launch platform includes a pair of spring assemblies that each include nested springs that are contained in a housing when the spring assemblies are in a compressed configuration. To separate the store from the aircraft the spring assemblies each move from the initial compressed configuration to an extended configuration, using the potential energy stored in the springs when compressed. The extension of the springs extends the springs mostly out of the spring assembly housings, extending telescoped sleeves of the spring assemblies. The extension of the spring assemblies provides a safe and steady way of separating the store from the launch platform, while having the advantages of being reusable, low cost and low weight, not producing any debris, and providing a softer push than may be produced by other separation mechanisms, such as the use of pyrotechnic devices.

Abstract: A structure includes a bolt body combined in a toy gun, a bullet feeding element, a high pressure air opening, an air outlet opening, an air valve assembly, a piston element, a recoil bar at one side of the bolt body, a first elastic element fit over the recoil bar, a bolt sleeve defined at one side of the bolt body and movably fit over the recoil bar, and an abutting section. When the high pressure air is input through the high pressure air opening, the air valve assembly may change a flowing direction thereof and drive the abutting section to move so as to control rearward movement of the piston element, the bolt body, and the bullet feeding element. A first elastic element that is operable to move the bolt body forward is disposed on the recoil bar outside the bolt body.

Abstract: Elevation turrets are used in rifles copes to adjust the point of aim of in the vertical direction. In tactical riflescopes used for precise shooting at long distance, the shooter often adjusts the elevation turret via very small movements or ‘clicks’. Each click indicates a fine adjustment step, often ½ MOA or ¼ MOA (Minute of Arc). At night or under stressful field conditions, it is difficult for the shooter to see the click markings or remember whether the turret has been turned once or twice. The present invention discloses an elevation turret that features a moving pin. The pin protrudes from the top of the turret if the turret is turned more than once. This can provide tactile feedback to the shooter and help him re-adjust his point of aim in the dark or when wearing gloves.

Abstract: Police officers use conducted electrical weapons (“CEWs”) and body-worn cameras. A body-worn camera and a CEW may cooperate to improve the performance and use of the CEW and evidence collection by the camera. A camera and a CEW may also cooperate to improve the safety of the user and the target. Improvements may include improving targeting of the CEW, identifying and classifying body parts of the target as suitable or unsuitable for electrode deployment, adjusting electrode trajectory prior to launch, and automating electrode launch. Evidence collection may be improved by recording placement of electrodes on the target. Safety of the target may be improved by monitoring the movements of the target and altering characteristics of the delivered stimulus signal if potential harm to the target may occur.

Abstract: An electromagnet can be used to provide a controlled magnetic field, for example for the purpose of minesweeping. The electromagnet is constructed of a material which has a Curie temperature, such that the electromagnet can be stored at a temperature above the Curie temperature, but deployed below the Curie temperature in use.

Abstract: A non-tilting outer barrel for a toy gun may include a first housing configured to accommodate at least a portion of an inner barrel through which a bullet is discharged, a second housing configured to accommodate at least a portion of a chamber coupled to one end of the inner barrel, a plurality of fixing members disposed in a bore of the first housing thereby restricting vertical movement of the first housing in relation to the inner barrel.

Abstract: A last round hold open (LRHO) apparatus comprising a first lever having a first end and a second end, a mag stop component to which the first lever is pivotally affixed at the second end, a second lever disposed proximate the second end of the first lever, the second lever pivotally affixed to the mag stop, a bolt catch affixed to the mag stop and the second lever, and a magazine release extending from the first end of the first lever.

Abstract: A sound suppressor, comprising an elongate tubular housing, a projectile entrance passage at a rearward portion of the elongate tubular housing, and a plurality of tubes positioned within the elongate tubular housing. In at least one example, the plurality of tubes may be offset from the elongate tubular housing and offset from a central axis of the elongate tubular housing.

Abstract: A firearm including a receiver, a barrel, a breech bolt assembly, and a trigger assembly. The bolt assembly has a bolt including a body portion, a lug portion, and a firing pin bore. The lug portion includes outward extending lugs, a cartridge recess, and an off-center hole. The bolt assembly also includes an extractor and an ejector pin. At least some of the lugs on the lug portion of the bolt have a tapering outer face so that a rearward face of the respective lug is taller than a forward face of the respective lug. In another aspect, at least some of the lugs on the lug portion of the bolt have tapering side faces so that a rearward face of the respective lug is wider than a forward face of the respective lug.

Abstract: An apparatus and method for creating the apparatus that holds a bolt open after a last round is fired from a magazine is disclosed. A lower receiver may include at least two cavities. A transfer bar may be configured to fit into a first cavity of the at least two cavities. A hold down may be configured to fit into a second cavity of the at least two cavities. At least a portion of the hold down may be configured to overlap with at least a portion of the transfer bar to hold the transfer bar in place. The transfer bar, when a final round is fired from a magazine in the lower receiver, may be pushed up by a bump in the magazine to transfer upward movement to the transfer bar that catches a bolt and holds the bolt open until activation of a release button.

Abstract: Various examples of a modular trigger control unit for firearms are described. A trigger mechanism housing, as part of the modular trigger control unit, can be removably received in a grip frame of a semi-automatic firearm such that, when received in the grip frame, a serial number of the firearm displayed on the trigger mechanism housing faces a back side of the grip frame and is visible through an opening on the back side of the grip frame.

Abstract: A guide system for use in electro-processing a bore of a gun barrel includes a non-conductive external bore guide and a non-conductive internal bore guide. The external bore guide is an adapter that is configured to removably engage the outside of the gun barrel and includes a conduit formed therein. The conduit is disposed such that it is axially aligned with a bore of the gun barrel when the external bore guide is engaged with the gun barrel. The internal bore guide is elongated and includes an axial recess that is sized to seat an electro-processing electrode (an anode). A method for uniformly plating the bore includes moving an anode through the gun barrel at one or more rate(s) of travel to uniformly plate the bore is also disclosed. The plating is sufficiently uniform to conform to military specifications. The systems, methods, support structures, etc. described herein are particularly well-suited to plating small-bore gun barrels.

Abstract: A Gatling type machine gun system whose rotational operation of subsystems is accomplished by way of a plurality of electronically controlled motors. The Gatling type gun system includes a core gun, a feeder subsystem, and a transfer subsystem each of which must operate at particular instance and speed to accomplish the proper operation of the gun system. Control of the gun and subsystems is provided by electronically controlled motors.

Abstract: A takedown pin for a firearm, having at least some of a head; a shank, wherein the shank extends from the head to a terminal surface; a projection extending from at least a portion of the terminal surface; a first groove or slot formed in at least a portion of the shank; a second groove or slot formed in at least a portion of the shank, wherein the first end of the first groove or slot is positioned at a spaced apart location from the first end of the second groove or slot; and a connecting groove or slot formed between the first end of the first groove or slot and the first end of the second groove or slot.

Abstract: A barrel assembly for use in a semiautomatic firearm, including a barrel and a takedown lever. A rear portion of the barrel includes a follower lug and a rear lug extending from an underside of the rear portion. The follower lug further includes a follower notch. A pin of the takedown lever includes a notch with a vertical face configured to contact a vertical face of the follower notch when the firearm is in the locked position. The rear lug is configured to be supported by a portion of a locking block of the firearm prior to firing and during a portion of the recoil period. The modifications to the barrel assembly result in increased dwell time and accuracy of the firearm.

Abstract: A projectile has a base, a tip, and a body axis intersecting the base at a trailing axis point and the tip at a leading axis point. The projectile includes a meplat that is substantially orthogonal to the body axis and a plurality of standoffs that extend away from both the trailing axis point and the leading axis point.

Abstract: Explosive compositions for use in high temperature, reactive ground, or both, are disclosed. The explosive compositions can include an emulsion with a continuous organic fuel phase and a discontinuous oxidizer phase. The oxidizer phase can include one or more Group I or Group II nitrates.

Abstract: A device for nonlethally incapacitating a human target. The device can propel a net with one or more conductive loops toward a target. The device can then wirelessly electrically energize the conductive loop or loops to further incapacitate the target. In this manner a human target can be safely captured and controlled.

Abstract: A guide system for use in electro-processing a bore of a gun barrel includes a non-conductive external bore guide and a non-conductive internal bore guide. The external bore guide is an adapter that is configured to removably engage the outside of the gun barrel and includes a conduit formed therein. The conduit is disposed such that it is axially aligned with a bore of the gun barrel when the external bore guide is engaged with the gun barrel. The internal bore guide is elongated and includes an axial recess that is sized to seat an electro-processing electrode (an anode). A method for uniformly plating the bore includes moving an anode through the gun barrel at one or more rate(s) of travel to uniformly plate the bore is also disclosed. The plating is sufficiently uniform to conform to military specifications. The systems, methods, support structures, etc. described herein are particularly well-suited to plating small-bore gun barrels.