Abstract: An underwater shock generation system and method uses an electrolysis generator supplied with an electrolytic liquid to generate an ignitable gas. A housing stores the ignitable gas and is adapted to be disposed in a water environment. An igniter is provided and is operable to ignite the ignitable gas stored in the housing to generate an explosion in the underwater environment. The housing is shaped to control a direction of propagation of the explosion in the water environment.

Abstract: An auto-loading firearm having a live fire mode, in which the firearm operates to discharge, and a training mode in which the firearm does not discharge. In the training mode, the firearm provides for resetting the trigger after simulated firing of the firearm.

Abstract: An automatically cocking air gun includes a cocking mechanism including a compression tube, a compression piston, and a spring. An actuator assembly is coupled to the compression tube to selectively move the compression tube between a firing position and a cocking position. The actuator assembly includes a lead screw and a lead screw nut driving a carriage to move the compression tube.

Abstract: A toy projectile launcher having a projectile container, a cocking slide, and a housing is disclosed. The projectile container contains projectile holders that are adapted to hold a projectile, such as a foam dart. The cocking slide can be moved forward and backward. The housing houses a launch barrel and an air piston assembly. When the cocking slide is moved backward the air piston barrel moves backward, and a projectile holder is moved into a firing position. The foam dart is held in place by a resilient stopper. When the cocking slide is moved forward an air nozzle engages a surface of the resilient stopper and advances through the projectile holder, pushing the foam dart into the launch barrel. An airtight seal is formed between the launch barrel and air piston assembly.

Abstract: An airgun for use with a projectile supply is described. A cam surface of the airgun and a bolt positioner of the airgun are configured so that rotation from a firing position to a reloading position causes a cam surface of the airgun to drive the bolt positioner through a passageway of the projectile supply to drive a projectile in the passageway to a position where pressurized gas in the firing location will thrust the projectile through the bore.

Abstract: An accountability control system may be configured to provide one or more accountability controls to a payload platform. A payload platform may comprise a device configured to deploy a payload. The accountability controls may comprise one or more of an authentication control, an authorization control, a custody control, or a security analysis control. The accountability controls may restrict or disable access and operations of the payload platform. The accountability controls may also create a chain of custody of operations and events taking place in the accountability control system and the payload platform.

Abstract: A trigger relocation assembly for a modern sporting firearm includes a frame enclosing a trigger of the modern sporting firearm, an assembly trigger within the frame, the assembly trigger positioned forward of the trigger, an asymmetrical transfer bar coupled to transfer movement of the assembly trigger one-to-one to the trigger, and a plurality of bushings. The bushings are configured to guide the transfer bar within the frame.

Abstract: A mounting platform is provided for securing munitions. The platform includes a flat plate, a front block and a rear block. The plate includes a plurality of cutout holes. The front block has a first saddle disposed between first flanking ends and at least one extension at one of the flanking ends for inserting into a first opening of the cutouts. The rear block has a second saddle disposed between second flanking ends at least one extension for inserting into a second opening of the cutouts. The munitions are disposable atop the first and second saddles of the front and rear blocks. The munitions are restrained axially against a rear stop block and laterally by the saddles and straps.

Abstract: A breechblock assembly for a firearm includes a breechblock extending along a central axis and configured to reciprocate along a receiver of the firearm between a recoil position and a battery position. A lever on the breechblock is movable from a blocking position to a non-blocking position in response to the breechblock moving from the recoil position to the battery position. A spring biases the lever to the blocking position. When the lever is in the blocking position the lever prevents the firearm from firing.

Abstract: A magazine for large ammunition includes a plurality of ammunition holders, with each ammunition holder being configured to operatively interface with a single round of ammunition. Each ammunition holder comprises an outer body, and an inner body configured to interface with the single round of ammunition. The inner body is transitional relative to the outer body between a first position and a second position, with the inner body extending out of the outer body as the inner body transitions from the first position toward the second position. The inner body is configured to release the single round of ammunition in response to the inner body being transitioned to the second position. The magazine additionally includes a plurality of links, with each link being coupled to a pair of the plurality of ammunition holders.

Abstract: A feeder door of a feeder of a machine gun, the feeder including a feeder housing and the feeder door spring-loaded and pivotally coupled via a pivotal coupling to the feeder housing between at least an open position and a closed position, the feeder door comprising a base including a slot; a retainer lever; and a pivotal coupling independent of the feeder door and feeder housing pivotal coupling configured to spring-load and pivotally couple the retainer lever to the feeder housing between at least a stowed position with the retainer lever retracted in the slot of the base of the feeder door and a deployed position with the deployable portion extending outwardly from the slot of the base feeder door.

Abstract: A stock has a buttstock. The buttstock includes an adjustable comb. The comb is connected to a body of the buttstock via a rod extending into the body of the buttstock and movable along a first axis. The position of the rod and comb is locked and unlocked by a latch. The buttstock includes an adjustable recoil pad. The recoil pad is connected to the body via a threaded rod mated with a nut embedded within an end of the body. The threaded rod and recoil pad move a direction along a longitudinal axis of the body depending on the rotation of the nut.

Abstract: An auto-center barrel cam for small optical systems including an outer barrel having a first channel extending longitudinally where the first channel is tapered from an inner surface to an outer surface of the outer barrel at a first angle and an inner barrel within the outer barrel. The inner barrel including a second channel extending longitudinally along the inner barrel where the second channel is tapered from an inner surface to an outer surface of the inner barrel at a second angle. A cam follower includes a flexure part having a first section with a first surface and a second section with a second surface. A spring section pulls the first section and the second section toward each other. The flexure part is arranged to maintain the cam follower within a center of the first and second channels as the inner barrel moves in relation to the outer barrel.

Abstract: The installation includes a traversing portion configured to be rotatably mounted and supported on a stationary support structure, to rotate about a traversing axis. An elevating portion is rotatably supported by the traversing portion about an elevating axis perpendicular to the traversing axis. A firearm assembly supported by the elevating portion has a barrel configured to fire linkless ammunitions through firearm assembly. A magazine is configured to contain a plurality of linkless ammunitions to be fed to the barrel. A feeding assembly is configured to transfer the linkless ammunitions from the magazine to the barrel. The magazine is carried by the traversing portion and is operatively integral therewith. The feeding assembly is carried by the elevating portion and is operatively integral therewith. A transfer device mounted on the traversing portion is configured to transfer the linkless ammunitions (A) from the magazine to the feeding assembly.

Abstract: An igniter of a passenger protection device has at least one metal pin for contacting the tripping unit of the passenger protection device. The metal pin has a contact end that can be coupled to the tripping unit. The metal pin has a gold coating with a layer thickness. A maximum layer thickness is present at a distance of at least 1 mm from the contact end.

Abstract: A weapon system training and firing aid comprising a shoulder bar attachment for elevating and/or traversing a weapon system is disclosed. It may have an elongate arm for attachment to the weapon system and extending in a generally rearward direction from the weapon system. Once coupled to a weapon system, it gives a user a stable method of supporting and moving the weapon system, allowing the user to quickly elevate and traverse the weapon system by giving the user an additional point of contact, for example at the shoulder or under the arm, to support and stabilize the weapon system.

Abstract: Automatically-reloading air guns and methods associated therewith. The automatically-reloading air gun includes a barrel fixedly carried by a frame, and a vent aperture in fluid communication with a firing chamber. Actuation of a release mechanism from an engaged position to a disengaged position allows a charge of compressed gas to slide a firing piston forward to force a projectile in the firing chamber into the breach end of the barrel. The compressed gas can exhaust out of the vent aperture from the firing chamber when the firing piston is in the extended position. The return spring slides the firing piston rearwardly to the retracted position after the compressed gas has exhausted from the firing chamber to automatically reload a new projectile into the firing chamber.

Abstract: A target sight for a firearm includes a main body, an elongated, flexible emitter carrier having a first end fixed to the main body and having a movable portion at a second end opposite the first end, and a light emitter mounted to the movable portion of the flexible emitter carrier.

Abstract: A cannon includes: a barrel; a breech ring connected to the rear of the barrel; a breechblock connected to be movable with respect to the breech ring between a closed position and an open position; an ignition device mounted to be partially movable with respect to the breechblock and configured to ignite a propelling charge; and a controller configured to transfer an electrical firing signal, wherein the ignition device includes: a firing assembly moving forward and backward as the breechblock moves; a laser diode primer connected to the front of the firing assembly and configured to receive the electrical firing signal to ignite the propelling charge; and a firing pin connected to be movable forward and backward with respect to the firing assembly and configured to transfer the electrical firing signal to the laser diode primer while in contact with a rear end of the laser diode primer.

Abstract: Disclosed is a cannon including: a barrel having a chamber in which a shell and a propelling charge are mounted; a breech ring connected to the rear of the barrel, and having a shell inlet communicating with the chamber; a recoil buffer disposed on an outer circumferential surface of the barrel, and guiding recoiling and returning motions of the barrel; a breechblock connected to the breech ring, and moving relative to the breech ring between a closed position closing the shell inlet and an open position opening the shell inlet; a laser ignition device including a laser portion disposed in the breechblock and emitting a laser to ignite the propelling charge, and a breech window covering the laser portion and allowing the laser to be transmitted into the chamber; and a breech window cleaning device cleaning the breech window.