Abstract: A trigger assembly a trigger member can be interchanged quickly and easily. The trigger assembly includes a support member adapted to be in communication with a gun, and a trigger member in removable communication with the support member.

Abstract: A projectile 1 for ammunition is disclosed, said projectile 1 comprising an outer profile geometry on an ogive-shaped impact end portion 5 thereof, said outer profile geometry comprising two or more notches 2 extending in at least one of (i) an axial, (ii) parallel or (iii) slightly inclined orientation relative to a dissecting axis 3 extending longitudinally through said impact end portion 5 of said projectile 1, wherein each notch 2 (a) comprises notch surface portions 4,7 so as to increase (i) an overall outer surface area of said ogive end portion 5 of projectile 1, and (ii) a given length of an outer surface periphery Sp extending along a line within a plane normal to said dissecting axis 3, and (b) is surrounded by an outer side surface 51 of said ogive-shaped impact end portion 5 of said projectile 1.

Abstract: An illumination system for weapon optics includes a light source and one or more channels that direct light from the light source onto adjustment interfaces of a weapon optical device, such as windage and elevation turrets of a scope. An illumination system for weapon optics may also include an illuminated level device for positioning the weapon level in relation to the surface of the earth. An illumination system for weapon optics illuminates adjustment interfaces of a weapon optical device such that markings on the adjustment interfaces can be read in low-light and no-light conditions.

Abstract: An airfoil for a gas turbine engine, according to an exemplary aspect of the present disclosure includes, among other things, a pressure side wall and a suction side wall spaced apart from the pressure side wall and each extending between a leading edge portion and a trailing edge portion. A plurality of cutback openings are spaced along a radial axis of the suction side wall.

Abstract: A simple apparatus which prevents a danger that a gas cylinder with gas left in the cylinder leaps out when the gas cylinder is taken out to change a gas cylinder is provided. A toy gun 1 includes: a gas cylinder housing portion 11 which is provided in the grip portion of an air gun and houses a gas cylinder 31; a clamp 41 which opens or closes the gas cylinder housing portion 11; a clamp pivot 42 about which the clamp 41 is rotated; a roller 14 installed at the bottom portion of the gas cylinder housing portion 11; and a receptacle 21 which is installed between the upper part of the roller 14 and the bottom portion of the gas cylinder 31 and is energized toward the roller 14 and whose surface shape is matched with the bottom face shape of the gas cylinder 31.

Abstract: A method is disclosed for modifying pre-existing ammunition projectile (10) which includes a hard metal inner core (11). The projectile is secured and a drill is applied to the tip end (17) of the projectile so as to create a bore (20) extending into the core. An insert (22) is then coupled to the projectile. The insert may include a shaft portion (23) which extends into the core channel and a tip portion (25). The insert is made of a non-hard metal or soft material.

Abstract: A cylinder impeller for revolvers, which transmits the trigger pulling movement to a cylinder revolving movement. The impeller includes a cover having inside it a track; a one-piece body having a plate and a slider, said slider being able to slide within and relative to the cover; and a spring arranged between the body slider and the surface of the cover track. Therefore, the cover and the body slide one relative to the other and against the spring action, thus varying the overall length of the impeller and compensating and absorbing possible teeth machining variations of the cylinder extractor.

Abstract: Embodiments of the present invention provide significant firearm recoil force reduction and can be integrated within a traditional firearm stock. Such recoil shock absorbers include a body assembly, plunger assembly, and return spring. The body assembly includes a shock tube, cylinder end, and accumulator. The shock tube includes an opening at its distal end, the cylinder end is rotably coupled to the shock tube, and the accumulator is coupled to the cylinder end. The cylinder end can be selectably/adjustably aligned with the shock tube opening, resulting in a selectable/adjustable orifice and a pathway from the shock tube to the accumulator. The plunger assembly is slidably coupled to the body assembly and includes a piston. The piston and the shock tube are in slidable relation such that when the plunger assembly is introduced into the body assembly the piston is introduced into the shock tube.

Abstract: A pneumatic projectile launcher with improved valve opening and closing characteristics includes a trigger mechanism in communication with a valve assembly, preferably through pneumatic or mechanical means. This valve assembly consists of at least two members; the first is used to seal a single projectile in a barrel tube so as to accelerate the projectile with a gas pulse (“bolt”). The second member of the assembly is a valve member which controls the release of said gas pulse. The aforementioned pulse that propels the projectile out of the barrel (“forward”) also acts on a face of the valve member opposite the projectile, translating the valve member rearward to the original, closed position.

Abstract: A switch includes a casing having a bore, a piston assembly having a first end and an exposed end, a plurality of flanges formed at the first end; an insulating sleeve enclosing the first end, a contact assembly disposed in the casing bore; a pin disposed in the bore; a predetermined quantity of lubricant deposited in the bore; and a spring urging the pin into engagement with the piston assembly. The insulating sleeve and the plurality of flanges are at least partially disposed in the casing bore. The pin has: (i) a first position wherein the pin electrically contacts the piston assembly and is electrically isolated from the contact assembly; and (ii) a second position wherein the pin is electrically isolated from the piston assembly and electrically engages the contact assembly. The predetermined quantity of lubricant may be approximately 0.3 grams.

Abstract: A device for launching fireworks, the device includes: a plastic plug and a locking base. The plastic plug includes: a resistance heating wire, a slot for accommodating the resistance heating wire, two metal conductors, two plate-like electrodes, and an upper clamping structure. The locking base includes: a lower clamping structure, two spring electrodes, and a circuit connecting socket. The top of the plastic plug is provided with the slot for accommodating the resistance heating wire. The resistance heating wire is fixed in the slot for accommodating the resistance heating wire and two ends of the resistance heating wire are electronically connected with one ends of the two metal conductors. The other ends of the two metal conductors are respectively electronically connected with the two plate-like electrodes and fixed at a bottom of the plastic plug. The bottom of the plastic plug is provided with the upper clamping structure.

Abstract: A firearm comprising an upper receiver and a charging handle is disclosed. A charging handle is coupled to the upper receiver and comprises a handle assembly rotationally coupled to a main body about a first and a second pivot point. The handle assembly includes a first handle having an edge nearest the main body and a latch extending from the first handle parallel to the main body for interfacing with the upper receiver in a first position, a second handle having an edge nearest the main body, and a push rod positioned between the edge of the first handle and the edge of the second handle, such that when force is applied to the second handle, energy is transferred through the second handle to the push rod and to the first handle, moving the latch into a second position.

Abstract: A case lube tray having an integrally formed polyurethane casing is provided. The case lube tray openings define a plurality of lubricating chambers being used to lubricate shell casings in a horizontal position. The lubricating chambers are mounted on the top frame of the case and are arranged in an array of horizontal rows and vertical columns. Each lubricating chambers features semicircle flooring and a floor center. The semicircle flooring is linear and is supported by front and back lateral walls. The floor center of each lubricating chamber has centrally disposed lateral slots that further allow a user to erect and lubricate shell cases in a vertical position.

Abstract: A rear gun sight mountable to a firearm that includes an aperture module defining a gun sight aperture and a base. The base defines a recess for receiving the aperture module and the aperture module includes ribs that are slidably received by associated recess in the base to constrict the aperture module to relative rectilinear movement with respect to the base. At least one spring acts between the base and the aperture module. An adjustment member couples the module to the base such that rotation of the adjustment member moves the module towards and away from the base depending on direction of rotation. A detent resists uncontrolled rotation of the adjustment member. The aperture module includes a recess for receiving a light emitting member such as a tritium module.

Abstract: A system and method for a user's appendages when firing a weapon is described. One embodiment includes a cover kit for a firearm handguard. The kit has a base and an insert. The base has a longitudinal axis, an upright axis, a transverse axis, a socket, an exterior surface, and an interior surface. The insert has an insert body and a plug. The socket has a movable engagement prong shaped to engage a wall surface of a handguard slot. The plug has a prong engagement surface shaped to engage the engagement prong. The plug is shaped to apply a force on the engagement prong such that a distal portion of the engagement prong is flexed more than a proximal portion of the engagement prong.

Abstract: An apparatus includes a barrel nut having an inner portion and an outer portion. The inner portion includes a threaded portion and a shoulder. The shoulder is configured to engage a shoulder of a barrel to retain the barrel within a receiver when the threaded portion is coupled to a corresponding threaded portion of the receiver. The outer portion defines an outer diameter such that a gas port of the receiver is exposed independent of a rotational position of the barrel nut relative to the receiver. The outer portion includes an engagement surface and a lock surface. The engagement surface is configured to engage a mounting surface of a handguard. The lock surface defines a frusto-conical shape configured to contact a set screw threadedly engaged with the handguard such that rotational movement of the set screw moves the handguard axially relative to the barrel nut.

Abstract: A firearm support brace has an attachment facility operable to removably connect securely to the mounting portion, an arm extending downwardly and rearwardly from the mounting portion, an extension extending from the arm and having an end away from the arm, and a saddle element connected to the end of the extension, such that the firearm is stabilized by positioning the saddle against the upper arm of a user adjacent to the elbow of the user while the barrel is aligned for sighting by the user. The attachment facility may include a first clamp portion connected to the arm, and a second portion removably connected to the first clamp portion. The attachment facility may define a cylindrical aperture. The attachment facility may be rotatable with respect to the firearm about a rotation axis parallel to a barrel axis defined by the barrel.

Abstract: A removable one piece folding primer feeding tray preferably includes a feed tray and a valve switch. The feed tray includes a tray portion, a cover portion and a feed channel. A tray edge of the tray portion is preferably pivotally connected to the cover portion. The cover portion includes two opposing cover side walls, which are spaced apart to receive an outside perimeter of the two opposing tray side walls. The feed channel extends from an opposing edge of the tray portion. The valve switch is slidably engaged with the feed tray. The valve switch controls the flow of primers and locks the cover portion to the tray portion. A feed adapter is retained in a hand held or bench mounted primer actuator and receives the primers from the removable folding primer tray and the lifts primers for pressing into a cartridge.

Abstract: An arming and safety device for a pyrotechnic chain, the device including a housing presenting an inlet zone for a pyrotechnic stream and an outlet zone for the pyrotechnic stream, an arming element housed in the housing between the inlet and outlet zones and adapted to move between a disarmed position in which it blocks the passage of the pyrotechnic stream and an armed position in which it allows the pyrotechnic stream to pass, and an electric motor for driving the arming element. The stator of the electric motor is situated outside the housing, and the rotor is contained entirely inside the housing.

Abstract: A muzzle brake for reducing the recoil associated with firing a weapon comprising a plurality of gas vents, a plurality of projections extending outward from the muzzle brake, and an interiorly depressed annular nose surrounding the projectile's exit point, for capturing, redirecting, and/or creating turbulence in propellant gases generated from firing the weapon.