Abstract: Disclosed herein are suppressors for use with firearms or the like, and methods of making and using such suppressors. The suppressor may include a body defining a central bore extending from a proximal end to a distal end about a central longitudinal axis. The body includes a proximal body segment defining a proximal bore segment configured to receive a distal end of a barrel of a firearm, and a distal body segment defining a distal bore segment. The body includes a wall having an inner surface defining the bore, and having an outer surface. The wall defines at least one channel extending through the wall from the inner surface in the proximal bore segment to the outer surface in the distal body segment. Some examples include a canted helical portion extending helically around a cylindrical body portion. Some examples include one or more cooling bores spaced from the central bore.

Abstract: A recoil pad assembly is provided and is configured to be removably attached to a firearm. The recoil pad assembly can include a recoil pad and a tool. The recoil pad can include a body having a first face, a second face, a first end, and a second end. A storage slot can be disposed into the first face of the body. The first face of the body can also include one or more anchors for removably attaching the assembly to the firearm. The tool can include one or more tools in or on its body and can be sized and shaped to be removably coupled to the recoil pad assembly by inserting the tool into the storage slot.

Abstract: A bolt stop actuator is disclosed. The actuator may include a lift arm, a first leg extending from a point proximate to an end of the lift bar and generally perpendicular therefrom, a second leg extending in the same direction from the lift bar as the first leg, and a projection extending from the lift bar and configured to contact a follower of an empty magazine when the bolt stop actuator is assembled into a firearm. Neither the first leg, nor the second leg, include apertures positioned distal to the lift arm.

Abstract: Example apparatus and method are disclosed for a unitary firearm housing for an automatic firearm, comprising a barrel receptacle configured as an internal component of the unitary firearm housing.

Abstract: A stock for a shoulder-fired weapon. The stock includes an articulated trapezoid or parallelogram-shaped structure that includes two blocks respectively forming a rest interface with the body of the weapon and a support for a butt plate, and at least two rigid linking arms, each jointed, at one of its ends, by a pivot link with the rest interface with the body of the weapon and at the other of its ends by a pivot link with the support of the butt plate. The weapon includes at least one locking structure for locking the arms together, in at least one fixed position defining a desired height of the butt plate with respect to the rest interface.

Abstract: The present invention provides a system configured to contain and redirect any explosion caused by the combustible gas as a safety precaution. This is accomplished through a cover, a floor plate, and one or a plurality of tanks adapted to retain high pressure combustible gas. The cover and floor plate will create an extremely rigid and temperature-resistant enclosure, while the tanks are positioned inside said enclosure. These components work in conjunction to provide a lightweight and compact system configured to contain an explosion, and alternatively, to redirect the explosion and resultant shrapnel downward and through the floor plate if the explosion cannot be contained.

Abstract: A mine roller includes a bracket having a first end and a second end. The first end is adapted to be coupled to a vehicle. A table having a center region is coupled to the second end of the bracket for rotation about the second end in a first plane. The table has first and second telescopic portions coupled to the center region such that the table is extendable relative to the center region in opposing directions of a second plane that is perpendicular to the first plane. A roller bank is coupled to each telescopic portion of the table for rotation relative to the respective telescopic portion in a third plane that is parallel to the second plane.

Abstract: The invention relates to an external chassis for a long firearm, the precision of which is increased owing to: 1. The incorporation of an external chassis, inside which the firearm is installed. 2. The anchoring of the firearm telescopically inside the external chassis using sliding rings with minimum friction. 3. The inclusion of a movement absorbing element. 4. The inclusion of guide bushings that limit the movement of the firearm to a single axis. With the above elements arranged as shown in the drawings, the inherent recoil produced in a firearm at the moment of firing, owing to the action-reaction effect of the stock-projectile assembly or the stock-discharge system, is suppressed and absorbed by the proposed invention, such that the stock remains immobile and no movement is transmitted to the shooter.

Abstract: Methods and systems for limiting the sudden expansion of propellant gasses, products of combustion when firing a gun, exiting a barrel of a gun, which otherwise would result in a very loud noise, sharp “recoil” of the gun, and a pronounced “muzzle flash” if released unrestricted. By utilizing two or more completely segregated, or partially segregated, expansion chambers, the gasses can be allowed to sequentially expand and cool under tightly controlled conditions governed by the size and location of holes, or passageways, in the barrel which communicate with the interior of the expansion tube that encompasses the barrel. The expanding gasses are further controlled by the locations and volumes of each segregated expansion chamber, and holes in the structural vertical and horizontal bulkheads of the expansion tube, which can “steer” the gasses in order to achieve easy expansion as well as gas flow disruption goals by design.

Abstract: A two-wheel balancing vehicle includes a chassis including one or more mounting interfaces configured to detachably mount one or more fighting modules for robotic competition. The two-wheel balancing vehicle also includes two wheel assemblies respectively mounted at a left side and a right side of the chassis. Each of the two wheel assemblies includes a wheel and a driving motor drivingly connected with the wheel and mounted to the chassis. The two-wheel balancing vehicle also includes an inertial measurement unit. The two-wheel balancing vehicle further includes a control system communicatively connected with the inertial measurement unit and the driving motor, the control system configured to receive sensing signals provided by the inertial measurement unit and to control a balancing state of the two-wheel balancing vehicle. The inertial measurement unit and the control system are mounted to the chassis.

Abstract: An ignitor for an electronic detonator, the ignitor including a microcontroller and a capacitor mounted on a printed circuit board (PCB) and electrically connected to one another, the microcontroller configured to discharge the capacitor in response to an actuation signal received by the microcontroller, a pair of conductive traces extending from the capacitor, a resistive element extending between the conductive traces and configured to radiate heat in response to current flowing therethrough, and a shroud disposed over the resistive element, the shroud containing a pyrotechnic composition that at least partially covers the resistive element.

Abstract: A firearm accessory mount is described herein. The firearm accessory mount is manufactured by securing a raw amount of material, shaping the raw amount of material to generate receiving structures positioned on a mounting base along a common axis, forming apertures through the receiving structures to form accessory rings along a single axis from one direction and at least substantially dividing each of the accessory rings into receivers and caps.

Abstract: A system and method for acceleration of a flying object, preferably with large take-off mass is described. The system can accelerate an object with a mass of several hundred thousand tons. The system includes the use for object acceleration of free (for the period of direct acceleration) energy of exhaust gases of the system elements' jet engines, pushing-out force of water, force of Earth's gravity, initial movement energy of the compressed spring and vacuum, lifting force of light gases, as well as energy consuming, for the period of acceleration, action of the system elements' jet engines, gunpowder gases and drives. The system and the method include acceleration of an object simultaneously in several systems accelerating one inside the other with the summation and increase of acceleration speed. The main elements of the system: launch barrel, carrier and booster pistons with jet engines, and pushing the pistons support.

Abstract: The present invention, BullCharge, is a device that converts the charging handle of an AR, M4, or SR25 flat top rifle to a side charger. The BullCharger device is conveniently installed on either side of the Picatinny riser rail of the rifle using bolts and cap nuts through the slots on the flange of the BullCharger block. This installation does not require the removal of any existing components. By pulling the BullCharger handle backward, the rod within the block engages and pulls the rifle charging handle till the end. Subsequently, the BullCharger handle is released, causing the rifle charging handle to return. And a round is loaded to the chamber to set the rifle ready for use.

Abstract: An electronic firing rifle assembly includes a salvo rifle operable through electrical means to efficiently discharge a salvo of projectiles. The assembly includes a firearm receiver body that provides housing for internal action components. The firearm receiver body has an inner surface defined by cam slots. The assembly also includes a barrel subassembly having a barrel and a plurality of barrel guide cams extending radially within the cam slots formed in the firearm receiver body. The assembly also includes a reciprocating bolt defined by has an ammunition placement zone for retaining ammunition, such as a tround. A leaf spring ejects the ammunition after discharge of projectiles. The bolt is defined by a cam track that allows the bolt to rotatably and longitudinally reciprocate along a bolt translation path in a helical path. Data pertaining to the location and direction of projectile discharge is transmitted for identifying discharge locations and tracking.

Abstract: A method for biopassivating an ordnance magazine containing explosive ordnance includes introducing microorganisms into the ordnance magazine and controlling the environmental conditions in the ordnance magazine to facilitate growth of the microorganisms. In this way, the ordnance magazine can be operated as a bioreactor to passivate the explosive ordnance inside.

Abstract: A barrel assembly for a rifle comprising an elongated barrel having an exterior surface, an interior cylindrical bore defining a caliber, a muzzle with a crown, and a rear end with an enlarged cavity capable of receiving a round of ammunition; an elongated muzzle device permanently attached to the exterior surface of the barrel and surrounding and extending past the crown, the muzzle device including a longitudinal opening coaxial to the bore and one or more access ports positioned adjacent to the crown, such that the crown is located radially inward relative to the one or more access ports; a sleeve slidably mounted to an exterior surface of the muzzle device and capable of sliding between an open position and a closed position; wherein, when the sleeve is in the open position, the crown is accessible through the one or more access ports; and wherein, when the sleeve is in the closed position, it seals and completely covers the one or more access ports.

Abstract: A spin-stabilized artillery projectile having at least one driving band and at least one obturator, wherein the driving band contains at least one compensating groove, and wherein the at least one obturator is arranged in the compensating groove of the driving band. The cross-section of the compensating groove, is preferably trapezoidal, but can also be rectangular or square. As a result, a complete detachment of the obturator is achieved and residues are avoided.

Abstract: A gun lock has a user manipulatable proximate end and a distal end for insertion into a barrel of a firearm. The distal end is spaced from the proximate end by a distance sufficient to allow the distal end to enter the chamber of the firearm when the proximate end is adjacent to but spaced from the barrel of the firearm. The distal end has elements which respond to user manipulation to transit from a first state allowing the distal end to enter and withdraw from the chamber of the firearm and a second state which prevents the distal end from withdrawing from the chamber. With the distal end of the gun lock inserted into the chamber and then transiting to the second state the inability to withdraw the gun lock from the firearm prevents the firearm from normal use.

Abstract: A handgun safety device comprising a safety element with a firing interrupting element configured for snug projection between a face of a duty cartridge and a fore end of a functional firing element, said safety element being articulated at a first end of a cord having a full length, with a second end configured for attaching to an article worn by a user.