Abstract: Airguns are provided with semi-automatic action.

Abstract: A firearm training barrel for a replica gun, the gun having a slide, a magazine configured to store pellets, and a nozzle. The barrel includes a pellet ejecting mechanism to eject pellets loaded in the magazine thereby simulating the ejection of a casing/shell.

Abstract: An apparatus that modularly adapts gas blowback pellet guns to fire pellets from automatic electric gun pellet gun magazines. Embodiments comprise ones that route high-pressure air into a gas frame disposed in a GBB gun magazine well, without tapping either of the gun and the magazine. The apparatus contemplates alternative gas frames, each being at least one having a shape selected from a plurality of shapes adapted to engage the magazine wells of desired GBB guns. The apparatus comprises at least one magazine adapter that is modularly and alternately engageable and disengageable with the gas frame. The apparatus also contemplates alternative adapters, ones that are alternately engageable and disengageable with any of multiple alternative gas frames.

Abstract: Ammunition for a conductive energy weapon. A receptacle includes a cavity accessible through each of a first opening in a first face of the receptacle, a second opening in the first face of the receptacle, a third opening in a second face of the receptacle and a fourth opening in a third face of the receptacle. A propellant unit is included within the cavity proximate the second opening and a projectile is included within the cavity proximate the second opening. A housing is coupled to at least the second face and the third face of the receptacle and is further configured to couple to the conductive energy weapon. The propellant unit releases a propellant into the cavity, in a direction substantially opposite the projectile's direction of flight, in response to a trigger pull of the conductive energy weapon, and the cavity directs the propellant in the projectile's direction of flight.

Abstract: This disclosure describes systems, methods, and apparatus for a selectable barrel support that can be inserted into a forend of a firearm stock to support a first barrel type and flipped, rotated, or otherwise moved to support a second barrel type (or third or fourth barrel types). A tensioning mechanism is provided. Bull and tapered barrels are examples of two barrel types that the selectable barrel support can be used to support. The selectable barrel support enables a firearm owner or gunsmith to exchange barrel types on a firearm without having to switch out the firearm stock.

Abstract: Apparatus for conversion of a firearm into a compressed gas powered firearm simulator for simulating shooting including a simulated barrel unit, which includes a rechargeable compressed gas reservoir therein. The reservoir in the barrel unit is rechargeable via a fill port included in the barrel unit, and a metering valve provided in the barrel unit permits the pulsed release of compressed gas from the barrel unit to simulate firing.

Abstract: This apparatus is a variable bore paintball barrel connector system. with a one-piece connector unit that joins the paintball marker with any mating barrel, regardless of manufacturer, at least one removable cylindrical compression sleeve that is inserted into the one-piece connector to provide the chosen compression to the paintball, thereby creating an optional compression zone, acting as an independent device that is not an incorporated component of any barrel nor marker unit, it allows for quick and easy transitions between the use of compression or no compression, and the compression sleeve has a raised lip on one edge that holds it in place and prevents it from slipping through the connector device.

Abstract: An assembly (10) having an outer barrel (12) and an inner barrel (30) having a pair of dissimilar sized bearings (38, 40) which are press fit within the outer barrel (12) and which permit the inner barrel (30) to mechanically rotate by the use of a motor assembly (50), a gear assembly (52), a battery (92), a gear (36), and a switch (54) having a depressible plunger (56) and a method for increasing the accuracy of a paint projectile by use of the assembly 10.

Abstract: The projectile attachments to a forced air compression chamber are devices that are attached to force air compression chambers and permit the user to place the projectile in or on the launch chamber prior to operating the air compression chamber thus making for a more fluid movement. The flexible ball projectile attachment allows the user to place one or more balls into the launch chamber and eject the same in a fluid movement without the aid of mechanical devices. Thus increasing the reliability and decreasing the number of moving parts in the typical ball launching device. The flexible dart type projectile attachment allows the user to place the dart type projection on the launch chamber and then suck air into the air compression chamber through the non-tube openings and when air is expelled from the air compression chamber the flexible diaphragm closes over the non-tube holes thus ejecting the dart type projectiles. Thus making the use of the launch chamber more efficient and easier.

Abstract: In a composition which has an amorphous, undercooled, glassy phase containing a water-soluble or water-swellable substance in an amorphous form, a sugar, which is capable of existing as a crystalline hydrate, is used as an agent to dehydrate the amorphous phase by crystallisation therefrom, and thereby enhance the glass transition temperature of the residual amorphous phase.

Abstract: A confetti discharge device includes a tube with an air cylinder located in one end of the tube and confetti packed in the tube between the cylinder and a discharge end of the tube. A release mechanism includes a stopper located in a mouth of the cylinder and a keeper. The keeper is held in place by a latch that is manually releaseable by a user to allow the stopper to come out of the mouth of the cylinder due to air pressure so that the air in the cylinder discharges the confetti from the tube.

Abstract: A paint ball gun includes a gun barrel mounted on a gun handle. The gun barrel is formed with parallel propelling and recuperator chambers for respectively receiving a propelling member and a recuperating unit. A connecting rod interconnects the propelling member and a recuperator member such that the propelling member is movable together with the recuperator member. A manually operable pull unit is mounted in the propelling chamber posteriorly of the propelling member, and includes a pull rod with a front rod portion formed with an elongated slot and a rear rod portion which extends out of the propelling chamber. The connecting rod extends through and is slidable along the elongated slot. The pull unit further has a biasing spring for biasing the pull rod forward.

Abstract: In a composition which has an amorphous, undercooled, glassy phase containing a water-soluble or water-swellable substance in an amorphous form, a sugar, which is capable of existing as a crystalline hydrate, is used as an agent to dehydrate the amorphous phase by crystallization therefrom, and thereby enhance the glass transition temperature of the residual amorphous phase.

Abstract: An attachment for converting an air-pressure water gun to a device ejecting projectiles by air pressure includes a hollow barrel portion having structures on the first end portion for fitting over the barrel of an air-pressure water gun. A hollow needle pin is adapted to the fitted within the nozzle of the water gun, and a tube extends from the needle pin to the interior of the first end portion of the barrel to deliver pressurized air from the water gun into the barrel to eject projectiles therefrom.

Abstract: A gun is provided which is capable of firing a variety of projectiles driven by a variety of propellants. The barrel may be readily disconnected from the stock of the gun. The breech is designed to receive a standard gauge shotgun shell. Inserts are also provided with the same general configuration of a standard gauge shotgun shell, and when placed into the breech, allow the gun to fire a variety of projectiles. Inserts are provided which allow the gun to fire both center fire and rim fire rounds through a bore in the insert. A rocket insert is also provided which contains a smooth bore and is capable of firing rockets. An inertial firing pin is provided, which operates in conjunction with a floating breech plate. The floating breech plate is used in the firing of compressed gas bottles. A dual action spring drive is provided which is used to provide the necessary force to drive the firing pin and which also absorbs a portion of the recoil.

Abstract: Air gun apparatus for firing missiles 11 including a gun and a replaceable cartridge assembly. The cartridge assembly includes a casing having a detachable hollow nose, a pressure cylinder slidably located in the casing, and a valve mechanism normally biased by a valve spring in the cylinder to close a gas discharge path from the interior of the cylinder to the hollow nose via a removable hollow valve abutment member. The valve mechanism is openable by forcible movement of the cylinder towards the hollow nose. The gun includes a seating at a breech end of a barrel, a breech, and a breech block assembly. A firing spring acts on an inertia member which is releasable by a trigger mechanism.

Abstract: A weapon which can be simply and quickly converted for use as either a firearm or as an airgun is disclosed. Removable chamber devices and bolt faces are adapted for different types of projectiles, such as pellets or cartridges. A number of bolt faces and chamber devices are provided for each type of projectile used. A conventional pressurized gas assembly provides the pressurized gas needed to propel the pellet. A hammer and trigger assembly mounted below the bolt housing releases a hammer to fire the weapon. When in the firearm mode, the hammer strikes a firing pin extending from the cartridge bolt face. When used in the airgun mode, the hammer strikes a gas pin which allows pressurized gas to enter into the pellet chamber device forcing the pellet out of the barrel. After each shot, the bolt assembly is drawn rearward to recock the weapon by either a firing pin in the firearm mode or by a hammer puller in the airgun mode, each extending into the path of the hammer from the corresponding bolt face.

Abstract: A practice device which allows the simulation of firing of a weapon such as a light antitank weapon wherein the weapon can be fired in an armory for practice by soldiers without requiring the actual tactical missile to be fired which requires a large firing range with extreme protection of personnel. The invention comprises attaching a gas powered pellet gun within the barrel of the missile launcher and loading such pellet gun with a round of ammunition after which the gun is cocked and the weapon is sighted toward a target provided therefore and the pellet gun is fired with a suitable trigger for simulating and practicing actual use of the weapon. When the trigger is depressed it causes a solenoid to be momentarily energized, which draws a sear away from a firing cylinder causing actuation of a valve to fire the pellet gun.

Abstract: An improved compressed gas ball propelling machine having various barrel extensions each of which include a second breech and ball feeding mechanism so that the machine can be used to throw balls of various diameters. The breech and ball feeding mechanisms of each of the barrel extensions can be removably fastened to the original breech mechanism of the ball propelling machine in such a way as to be operatively connected thereto so the machine can propel balls of a diameter for which the machine was originally intended or balls of different diameters.