Abstract: A training cartridge (5) and gun barrel insert (1) assembly, wherein: a) the training cartridge (5) comprises a sleeve (17) shaped and configured to fit the breech of a gun and which holds a primer (21) and bullet (20) assembly; the assembly being located at the rear portion of the cartridge (5); a channel (22) extending forward from the bullet (20) and a recessed front channel portion (4) for receiving the sub-calibre barrel portion (3) of a corresponding gun barrel insert (1); and b) the corresponding gun barrel insert (1) comprises a sleeve (2) shaped and configured to fit at least in part into the barrel (10) of a gun; the sleeve (2) being located around a sub-calibre barrel (3); wherein the sub-calibre barrel (3) extends rearward beyond the sleeve (2) in order to project into the recessed front channel portion (4) of the corresponding training cartridge (5) .

Abstract: A firing adapter for a combination gas and recoil operated weapon includes a blank firing barrel attached to the weapon; a piston having a barrel end and an anchor end, the barrel end being reciprocably disposed in the blank firing barrel and the anchor end being fixed to a non-recoil surface; and a gas port formed in the blank firing barrel wherein in a rest position of the weapon, the barrel end of the piston closes the gas port, and in a recoil position of the weapon, the barrel end of the piston opens the gas port.

Abstract: A blank firing barrel for use with handguns is disclosed. The blank firing barrel is sized to be substituted for an existing live-ammunition firing barrel in a handgun. The blank firing barrel can be machined from a solid block of metal such as stainless steel so that the barrel end is a contiguous portion of the original solid metal block. A downwardly angled small pressure release hole can be drilled into the closed end so that gasses from firing the blank can be safely discharged. The open end of the blank firing barrel can be sized to only accept ammunition being smaller in diameter than regular ammunition that is used for the handgun. The under rear edges of the blank firing barrel can be angled so that said barrel safely recoils within the handgun when it is fired.

Abstract: The present invention (2) is a small arms caliber and/or power reducing device for using a primer (18) to fire a projectile (21) and thence directionally guide the trajectory of said projectile from a firearm (1) the barrel bore of which may be substantially larger than the caliber of said projectile. The present invention may be adapted by selecting appropriate external dimensions, internal dimensions and form factors to enable its use with any existing breech loading small arm chambered for center-fire cartridge ammunition. The present invention may be constructed of two parts: 1) An adapter sleeve (10), and 2) a chamber (14), and intended to be re-loadable for multiple uses. Alternatively, the present invention may be configured as a single piece, fabricated with a primer and a projectile disposed therein, and intended to be used one time and discarded. Suitable primers may include Standard Small Rifle or Small Pistol Primers, Standard Large Rifle or Large Pistol Primers, or Standard 209A Shotgun Primers.

Abstract: A barrel assembly for insertion into a parent barrel of a gun wherein said barrel assembly has a plurality of projectiles axially disposed within at least one barrel of said barrel assembly and associated with discrete selectively ignitable propellant charges for propelling the projectiles from said at least one barrel wherein said barrel assembly includes a parent barrel engaging means. The barrel is suitably provided in a removable rear barrel section having engagement means for operatively aligning the rear barrel section with a forward barrel extension. Spare rear barrel sections may be stored in a stock of the gun and automatically fed into alignment upon exhaustion of the projectiles in the barrel.

Abstract: The firearm and munitions kit is a cartridge and a barrel insert for a firearm adapted to fire munitions comprising a 223 round. The cartridge has an axis, a neck, a shoulder, a body, an extraction groove, and a slight frustoconical shape extending axially from the widest body diameter to the beginning of the shoulder. The barrel insert is appropriately chambered and provided for operability with the cartridge and round. A chamber of the barrel insert has an axis, a neck bore, a shoulder bore, and a body bore. The shoulder and the shoulder bore are formed at an angle of approximately 29°, ±0.5° with respect to the axis of the chamber. Upon firing a firearm equipped with the barrel insert and munitions of the present invention, the round is capable of reaching a minimum velocity of greater than 2,000 fps.

Abstract: A conversion kit and method for converting the RUGER® 10/22® semi-automatic .22 caliber rim fire rifle to shoot .17 HM 2 cartridges utilizes the original bolt in the receiver and replaces the bolt operating handle with increased weight to replace the original bolt handle along with a .17 caliber barrel to permit the modified rifle to safely fire, eject and reload the .17 caliber cartridges.

Abstract: Flash suppressors having novel expansion features are disclosed. In one embodiment, a suppressor apparatus includes an attachment portion adapted to attach to a gun barrel, and a suppressor portion coupled to the attachment portion. The suppressor portion has a suppressor bore therethrough that is adapted to be aligned with a longitudinal axis of the gun barrel to allow a projectile from the gun barrel to pass therethrough. The suppressor bore is defined by at least one bore surface having at least one expansion groove disposed therein. The expansion groove may be partially-circumferentially disposed about the suppressor bore, or may include a plurality of expansion grooves. In another embodiment, a flash apparatus includes a suppressor portion having a plurality of longitudinally elongated members spaced apart about a circumference of the suppressor bore, each elongated member being separated from adjacent elongated members by a longitudinal slot, at least one longitudinal slot having non-parallel sidewalls.

Abstract: A buckshot round for use in large, smooth-barreled weapons, such as an M203 or M79 grenade launcher, wherein the round itself acts as the firing barrel. In particular, a lethal buckshot round is provided, wherein an inner metal cylinder (barrel portion) is encased in an outer jacket, and a shot wad is contained in the inner metal cylinder, such that the inner metal cylinder acts as a barrel for firing of the buckshot from the smooth-barreled weapon. The barrel portion of the buckshot round acts as the firing barrel, and prevents contact of the buckshot with the weapon barrel during firing, thereby providing an accurate firing pattern and preventing damage to the weapon barrel.

Abstract: A conversion kit for converting a semi-automatic or self-loading handgun of a certain caliber, such as a Colt .45, is modified to allow the use therein of cartridges of a different, usually smaller caliber, thus to allow less expensive training on the handgun, wherein only the barrel and magazine need to be replaced, the barrel having thereon a sliding extractor that cooperates with the original slide in the ejection and reloading of cartridges, and an off-axis bore adjusted to compensate for the difference in the reloading mechanism and the lesser rise of the handgun when firing the lower caliber ammunition, thereby allowing retention of the sighting, safety features, and mechanical functions of the original handgun while closely duplicating the original weight.

Abstract: A detachable gun barrel assembly having an adapter for threaded engagement with the receiver and a barrel dimensioned for affixation to the adapter. The adapter has a mating end section which threadedly engages the receiver V-threads and a receiving end section having square internal threads. The mating end section has a limit flange at its innermost end. The receiving end section has a larger internal diameter to form an internal flange or stop between sections. The barrel has an alignment section which inserts into the mating end section and contacts the limit flange. A securing section of the barrel is provided with a square external thread to engage the receiving end section and contact the internal flange. The elongated barrel is provided with an external shoulder which contacts the receiving end section upon affixation of barrel to adapter thereby providing a number of stops to maintain barrel alignment.

Abstract: An adapter device is provided for converting a grenade launcher into a weapon for firing shot shells. The adapter includes an elongate barrel member of a gauge for shot shell which is adapted to be received in, and extend through, the barrel of the host barrel assembly of the grenade launcher. A cap secures the barrel member in place in the host barrel assembly. A replacement barrel assembly for firing shot shells is also provided which includes a shell extractor for extracting shells from the replacement barrel.

Abstract: A safety system for preventing a handheld firearm from discharging an inadvertently loaded live ammunition projectile or bullet during a training exercise or the like by safely venting through a series of substantially perpendicular vent holes in the barrel, the pressure needed to propel the bullet down and through the barrel towards the target—so as to retain the bullet in the bore and cause the firearm to shut down.

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: A blank firing barrel for use with handguns is disclosed. The blank firing barrel is sized to be substituted for an existing live-ammunition firing barrel in a handgun. The blank firing barrel can be machined from a solid block of metal such as stainless steel so that the barrel end is a contiguous portion of the original solid metal block. A downwardly angled small pressure release hole can be drilled into the closed end so that gasses from firing the blank can be safely discharged. The open end of the blank firing barrel can be sized to only accept ammunition being smaller in diameter than regular ammunition that is used for the handgun. The under rear edges of the blank firing barrel can be angled so that said barrel safely recoils within the handgun when it is fired.

Abstract: Flash suppressors having novel expansion features are disclosed. In one embodiment, a suppressor apparatus includes an attachment portion adapted to attach to a gun barrel, and a suppressor portion coupled to the attachment portion. The suppressor portion has a suppressor bore therethrough that is adapted to be aligned with a longitudinal axis of the gun barrel to allow a projectile from the gun barrel to pass therethrough. The suppressor bore is defined by at least one bore surface having at least one expansion groove disposed therein. The expansion groove may be partially-circumferentially disposed about the suppressor bore, or may include a plurality of expansion grooves. In another embodiment, a flash apparatus includes a suppressor portion having a plurality of longitudinally elongated members spaced apart about a circumference of the suppressor bore, each elongated member being separated from adjacent elongated members by a longitudinal slot, at least one longitudinal slot having non-parallel sidewalls.

Abstract: A barrel assembly (14) for insertion into a parent barrel (13) of a gun (10) wherein said barrel assembly has a plurality of projectiles (16) axially disposed within at least one barrel (15a) of said barrel assembly and associated with discrete selectively ignitable propellant charges for propelling the projectiles from said at least one barrel wherein said barrel assembly (14) includes a parent barrel engaging means. The barrel is suitably provided in a removable rear barrel section (15a) having engagement means (17, 18) for operatively aligning the rear barrel section with a forward barrel extension. Spare rear barrel sections (15b, 15c) may be stored in a stock (11) of the gun (10) and automatically fed into alignment upon exhaustion of the projectiles (16) in the barrel.

Abstract: A barrel assembly for a pneumatic paintball gun includes a barrel body and a barrel insert. The barrel body has a breech end, a muzzle end, and a barrel bore extending longitudinally through the barrel body from the breech end to the muzzle end. The barrel insert has a breech end, a distal end, and an insert bore, and is configured to be removably housed within a breech portion of the bore of the barrel body. The breech end of the barrel body is configured to attach to a breech end of the paintball gun. The barrel insert collaborates with the barrel body to provide a firing bore for the barrel assembly which guides a paintball fired from the breech end of the gun through the barrel and out the muzzle end of the barrel body. The barrel insert can be constructed having a thin, flexible wall so as to permit lateral deformation of the barrel insert.

Abstract: A fire arm, especially a small caliber pistol, having a grip, a frame connected to the grip, a barrel unit fixed on the frame in the operating state of the fire arm, with a barrel tube and a bolt which can move relative to the frame and barrel unit such that when a shot is fired it can move to the rear against the direction of firing, the barrel unit and/or the frame having fastening means which allow detachable mounting of the barrel unit on the frame.

Abstract: A removable inner barrel apparatus has a rifle with barrel extending therefrom, an inner barrel having an end through which ammunition can exit, a pressure nut removably fastening the barrel of the rifle to the inner barrel, and a compression spring positioned within the pressure nut. The inner barrel has a grooved hollow interior and a bushing affixed adjacent to an opposite end thereof. The compression spring urges against a surface of the bushing so as to urge the bushing against the end of the inner barrel.

Abstract: A plug assembly for inserting in a breech of a breech-loaded firearm to convert the breech-loaded firearm to a muzzle-loaded firearm is provided. The plug body is slidable in the breech and includes first and second ends. The plug body defines a powder chamber adjacent the first end, an ignition counterbore in firing communication with the powder chamber, and an access counterbore adjacent the second end of the plug. The plug body includes a mechanical interlocking device in the access counterbore to facilitate removal of the plug body from the breech of the breech-loaded firearm.

Abstract: The present invention refers to a novel inner barrel for sport rifles, which has the particularity of installing or removing in a simple way, and allows using ammunition and pellets of different calibers. In this way, the sport rifle becomes a versatile device that uses indifferently either ammunition or pellets of different calibers without the necessity of removing the original barrel. On the other hand, this inner barrel can be adapted in sport rifles carrying out, previously, a simple repair consisted in making a cord on the mouth of the barrel and increasing the correlative diameter to the proposed inner barrel, in order to become a versatile rifle.

Abstract: A 0.22 caliber long rifle removable conversion system kit for open top frame, black powder, ball and cap colt reproduction and replica revolver—recreation and gallery shooting comprises a barrel nut and a barrel sleeve nut being threaded to mate with a threaded portion of the outside diameter of the barrel sleeve and sized to fit snugly into the inside diameter of the outlet of the pistol barrel. Also included is a firing pin ring assembly comprised of a loading gate subassembly, firing pin subassembly and firing pin ring. Also included is a cartridge cylinder being cylindrical in shape with cartridge apertures configured to mate with and engage the existing rotation hand and locking lug of the pistol frame. Lastly included is a barrel wedge assembly comprising an expanding wedge subassembly and an unloading rod assembly comprising an unloading rod and an unloading rod housing.

Abstract: An accessory adaptor for a small firearm muzzle is disclosed for attaching a bored firearm accessory in alignment with the firearm bore. The accessory adaptor includes an adaptor body having a full sleeve with internal threads and a partial sleeve with a top opening for receiving a protrusion of the firearm muzzle. A muzzle receiving end of the adaptor body includes a barrel catch. A threaded accessory is threaded into the full sleeve of the adaptor body causing the barrel catch to draw tightly against the barrel protrusion within the top opening and causing a face of the accessory tighten against the muzzle face of the firearm with the bores of the firearm accessory and firearm in alignment.

Abstract: A shotgun adapter is provided for firing a shotgun cartridge having a shotgun bore which is larger than the cartridge. The adapter is a generally hollow tubular member having a cylindrical tapered outer wall and an inner wall concentric with the outer wall, with the inner wall being uniquely tapered to specified degrees depending on the shell gauge to be used.

Abstract: Shown is a locking interface assembly that facilitates the integration of a commercial Long Gun Barrel tube with an existing gun mount of a conventional Tank. The interface assembly allows the non-conforming tube to be fitted to the mount in a precise fashion, eliminating clearances between the mount and tube, permitting re-tightening of elements that become loose during high inertial loadings. The interface assembly is comprised of a thrust nut, bearing, retaining ring, king nut, adapter, pin, nut key, locking pin, retainer pin, retaining ring key, key retainer pin and screw. The retaining ring is slid over the tube, followed by the a coupling subassembly comprised of the bearing and the thrust nut. The coupling subassembly engages the tube shoulder to prevent the bearing from rotating. The king nut engages the tube to capture the bearing against the tube shoulder and to prevent the bearing from moving with respect thereto.

Abstract: A firearm assembly including a fluid deflector adapted to be connected to a discharge end of a barrel of a firearm, the fluid deflector including a first passage for flow therethrough of a fluid and a second passage in fluid communication with and angled with respect to the first passage for flow therethrough of the fluid.

Abstract: A firearm assembly including a fluid deflector adapted to be connected to a discharge end of a barrel of a firearm, the fluid deflector including a first passage for flow therethrough of a fluid and a second passage in fluid communication with and angled with respect to the first passage for flow therethrough of the fluid.

Abstract: The present invention relates to a shotgun accessory which can be attached to and detached from the barrel of a shotgun.

Abstract: A removable system for converting a breach loading shot gun with center fire cartridges for use with .22 caliber rim fire rifle cartridges has a cylindrical sleeve nut with an axial hole drilled through with a thread at its interior end and with a ball shape at the interior end. A steel tube has a .22 caliber rifling with an exterior end adapted to threadedly receive the sleeve nut, a hexagonally shaped surface on an intermediate step and a step formed on the interior end with a thread. A dummy shotgun shell has a hole through the interior end threaded halfway from the exterior end and a chamber at the exterior end adapted to receive a .22 caliber rim fired cartridge. The thread and chamber are axially aligned but offset from the centerline of the dummy shell.

Abstract: A system for firing either a first cartridge or a second cartridge from a handgun, the first and second cartridges having dissimilar calibers. The system includes a first barrel removably mounted to the handgun, with the first barrel including a first cartridge chamber sized to permit placement of the first cartridge into the first barrel in a firing position. The first cartridge chamber is sized to prevent placement of the second cartridge into the first cartridge chamber in the firing position. A second barrel is provided, which is interchangeable with the first barrel and which is also removably mounted to the handgun. The second barrel includes a second cartridge chamber sized to permit placement of the second cartridge into the second barrel in a firing position, and the second cartridge chamber is sized to prevent placement of the first cartridge into the second cartridge chamber in the firing position.

Abstract: A shotgun adapter is provided for firing a shotgun cartridge having a shotgun bore which is larger than the cartridge. The adapter is a generally hollow tubular member having a cylindrical outer wall and an inner wall concentric with the outer wall, with the inner wall and outer wall being uniquely tapered to specified degrees designed to improve the shooting accuracy when skeet shooting with different gauge cartridges.

Abstract: An automatic pistol converted to fire low energy ammunition in a blow-back mode has a replacement barrel that carries a cam on its upper surface. The weapon slide, as it retires during firing, contacts the cam and rotates the chamber end of the replacement barrel downwardly. This aligns the spent casing for ejection by the ejector, once extracted from the chamber. The slide may carry a removable deflector plate for contacting the cam.

Abstract: The present invention relates to a shotgun accessory which can be attached to and detached from the barrel of a shotgun.

Abstract: Improved devices for adapting revolvers for shooting practice with pellets. Advantages include qieter operation, no need of accesories for loading or unloading the primer and a universal size for cylinders of different lengths. A venturi passage separates the detonaing chamber from the bore, thereby accelerating and depressurizing the expansion gases and reducing noise. In one embodiment, the adaptor includes an internal cannon which is longitudinally displaced together with the pellet by the propulsion gasses. Improved adaptors are disclosed for pistols, for selfcentring a barrel liner and protecting rifling grooves.

Abstract: An adapter for attaching sound suppressors or other auxiliary attachments, such as a grenade launcher, to a weapon having a flash suppressor mounted on the end of a gun barrel. The adapter includes an adapter pilot specific to the caliber of weapon. Interchangeable adapter pilots allow a single adapter system to be utilized on various weapons having different calibers.

Abstract: A bola deployment device for launching a bola from a firearm has a housing member, a plurality of tubular segments with pockets for inserting a bola weight and a stowage area for placing the bola cord. The bola deployment device is attached to the end of a firearm and when fired, the weighted ends of the bola effectively separate from each other as the bola departs from the bola deployment device.

Abstract: A conversion kit for a recoil-operating automatic pistol to convert it to direct blow-back operation utilizes a two piece barrel having chamber and muzzle portions that may be threaded together. The chamber portion is first installed on the receiver by insertion through the injection port, and the muzzle-piece is then threaded to the chamber-piece to complete the assembly of the barrel.

Abstract: A system for firing either a first cartridge or a second cartridge from a handgun, the first and second cartridges having dissimilar calibers. The system includes a first barrel removably mounted to the handgun, with the first barrel including a first cartridge chamber sized to permit placement of the first cartridge into the first barrel in a firing position. The first cartridge chamber is sized to prevent placement of the second cartridge into the first cartridge chamber in the firing position. A second barrel is provided, which is interchangeable with the first barrel and which is also removably mounted to the handgun. The second barrel includes a second cartridge chamber sized to permit placement of the second cartridge into the second barrel in a firing position, and the second cartridge chamber is sized to prevent placement of the first cartridge into the second cartridge chamber in the firing position.

Abstract: A blank firing attachment for a recoil operated gun. The attachment comprises a barrel (10) having in its length an external shoulder (12). A gas cylinder in the form of a sleeve (13) is slidingly fitted onto the barrel (10) and located over the external shoulder (12). An internal shoulder (14) of the sleeve is located opposite the external shoulder (12) such that the shoulders (12 and 14) together with the surface of the barrel (10) and the sleeve (13) form a gas chamber (24). At least one gas transfer passage (11) connects the gas chamber (24) to the bore (10′) of the barrel (10). A mounting flange (15) with fastenings (19) and locking lugs (20) fix the gas cylinder (13) to a receiver section (23) of a gun.

Abstract: An attachment for a firearm with a removable barrel screws onto the firearm in place of the barrel and enables firing a flare. The attachment includes a firing pin housing with a sliding firing pin extension, and a flare cartridge barrel, which may be temporarily removed to receive a flare cartridge and then replaced. The normal bolt action of the firearm actuates the firing pin extension to fire the flare cartridge.

Abstract: An interchangeable upper receiver assembly for use with a hand held weapon and the interchangeable upper receiver assembly in combination with the hand held weapon, where the interchangeable upper receiver assembly includes an integral, unitary breech block and barrel that is operably removably couplable to the lower receiver assembly of the hand held weapon in an engaged disposition. A bolt assembly is slidably disposed within a bolt recess defined in the receiver breech block and barrel. The bolt includes a firing pin slidably disposed therein, the firing pin being selectively actuatable by the trigger assembly when the receiver is in the engaged disposition.

Abstract: A training barrel for conversion of a firearm from normal barrel/slide partial locking operation to unlocked slide blow-back operation has an insert which provides a guide ramp for chambering rounds during the reload cycle. The guide ramp compensates for the absence of rearward displacement of the barrel when the firearm is converted to a training configuration. Such insert may be assembled into the weapon without modification to the slide or frame of said weapon.

Abstract: A method of providing a new cartridge chamber for the breech of a cattle stunning gun for the purpose of improving the ability of the chamber surface to resist corrosive deformation resulting from firing cartridges in the gun. The method includes machining the breech to remove the original surface and providing an insert sleeve which replaces the machined material with a harder and more resistant material. The disclosure includes the configuration of the insert and its relationship to the machined breech.

Abstract: The present invention relates to a shotgun accessory which can be attached to and detached from the barrel of a shotgun. A shotgun accessory formed in accordance with the invention is an accessory barrel (6), the structure of which is such that it brings about the optional combustion of the gun powder in the shotgun's barrel and accessory barrel (6).

Abstract: A breech Block safety device for preventing weapons from being accidentlly loaded while at home or on display in businesses and military applications. The breech Block device utilizes two O-rings and the two grooved angles in which the O-rings are seated, that serves to secure and hold the safety breech block in location. The use of the O-rings and grooves ensures a firm hold in the chamber, plus the angles of the seat walls cause a easy insertion and a restricted extraction of the plug. The composition of the breech block makes it inexpensive for mass production and manufacturing techniques. The two O-rings fit within the two grooves that is slightly wider than the thickness of the O-ring which causes the a easy insertion and a secure hold in the chamber and a restricted extraction with no shearing of the O-rings.

Abstract: A training device for a combat vehicle with a heavy weapon, especially an armored howitzer. A shorter practice barrel replaces the weapon's regular barrel, but has the same sort of attachments at its inner end as the regular barrel has for fastening it to accommodations in the vehicle. A magazine at the outer end of the practice barrel accommodates rammed practice shells, which are decelerated and forwarded to magazine shafts offside the axis of the barrel. Practice shells of essentially the same weight and dimensions as regular shells and an impact absorber at the front for accepting the impact of a brake, are accommodated in the magazine. An accessory device for removing the practice shells from the magazine comprises a framework that travels on rollers and is provided with a platform for operating personnel and with a hydraulic lift that accepts used practice shells from the magazine and lowers them to the ground.

Abstract: The invention relates to a training weapon system for a portable recoilless anti-armor weapon of the type which comprises a sub-caliber insert barrel (1) arranged in the bore of the launching barrel of the full-caliber weapon. In order to improve the accuracy of the system and make it more safe as well as less expensive when compared to previous systems of this type, the sub-caliber insert barrel (1) has a rifled bore to make the training projectile spin stabilized. The forward aligning member (5) for centering the insert barrel (1) is engaging the ridges of the rifles in the rifled portion of the barrel in the recoilless full caliber weapon. By such an arrangement it can be avoided that length tolerances give rise to undesired radical deviations which might result in a mis-alignment of the insert barrel (1) within the gun bore. This could happen with the forward aligning member engaging the conical, smooth-bored firing chamber in the barrel.

Abstract: An interbar assembly (34) for reversibly attaching a supplemental device, e.g., grenade launcher (32), to a host weapon, e.g., rifle (10). A preferred interbar assembly (34) attaches at its forward end to the rifle barrel (16), and at its rearward end to a "brace" (37) located in the breech area of the rifle (10). In a preferred embodiment, such connection can be made without the need for special tools after simply removing the host weapon lower hand guard (26b), which is readily removable, but without any other alterations.

Abstract: A weapon discharge safety mechanism is designed in one multiple section piece for use with handguns and in two separate sections for use with rifles. The discharge safety mechanism includes a trigger guard housing with a bottom, first and second sides and an open top, which fits over and covers the trigger guard and trigger area of a firearm such as a pistol or a rifle. The trigger guard housing portion is releasably secured by a retention pin just behind the front of the trigger guard to hold the trigger guard housing portion in place covering the trigger guard. For handguns, an enclosed bullet trap housing is attached to the trigger guard housing portion. For rifles, this housing is separate. The bullet trap housing has a first closed end and a second open end, which fits over the end of a barrel of the gun and extends over the barrel a short distance.