Abstract: A metallic component of a lower receiver for a firearm is disclosed herein. The metallic component includes a body with apertures between a first side of the body and a second side of the body. The body can be configured to mate with another component of the lower receiver along the second side. The two lower receiver components can be detachably affixed together via the apertures. The body can have a ring-shaped protrusion at a first end. The ring-shaped protrusion can extend outward perpendicular to the first side and the second side.

Abstract: A magazine of a pistol for cartridges with a case rim, having a hollow magazine body for accommodating the cartridges in two vertically offset rows, a base plate, a feeder, which is guided in a displaceable manner in the magazine body, and a compression spring between the feeder and the base plate, wherein the upper end region of the magazine body forms a narrowing, in which the two rows of cartridges are guided together to form a single row. In order to ensure a reliable feed of the cartridges despite the case rim, in the longitudinal center the side walls have inwardly directed beads which run over the entire height of the side walls and merge, in the upper region, into converging guide ribs, and the feeder forms a bearing surface, which is convex in the longitudinal direction and on which a cartridge located thereon can alter its angle of inclination in relation to the horizontal.

Abstract: The present disclosure provides ammunition magazines for bottom-loading a 5.7×28 mm ammunition round or a 4.6×30 mm ammunition round into a standard AR-15 or M16 upper receiver.

Abstract: A firearm is provided comprising a body which defines a magazine well. The well has a rear wall and a first side wall integrated with the body. A front wall is detachable from the body and in part defining the well. Further a second side wall is detachable from the body and in part defining the well.

Abstract: A magazine of a pistol for cartridges with a case rim, having a hollow magazine body for accommodating the cartridges in two vertically offset rows, a base plate, a feeder, which is guided in a displaceable manner in the magazine body, and a compression spring between the feeder and the base plate, wherein the upper end region of the magazine body forms a narrowing, in which the two rows of cartridges are guided together to form a single row. In order to ensure a reliable feed of the cartridges despite the case rim, in the longitudinal center the side walls have inwardly directed beads which run over the entire height of the side walls and merge, in the upper region, into converging guide ribs, and the feeder forms a bearing surface, which is convex in the longitudinal direction and on which a cartridge located thereon can alter its angle of inclination in relation to the horizontal.

Abstract: A cartridge magazine is provided. The cartridge magazine may include a rib mounted on a vertical wall of the cartridge magazine. The cartridge may further include a ramp attached to a top of the rib. In another embodiment, the cartridge magazine may include an opening including spacer having a flat portion. The flat portion provides space for a cartridge of a particular caliber between the flat portion of the spacer and an opposing wall of the cartridge magazine.

Abstract: An apparatus and method for creating the apparatus that holds a bolt open after a last round is fired from a magazine is disclosed. A lower receiver may include at least two cavities. A transfer bar may be configured to fit into a first cavity of the at least two cavities. A hold down may be configured to fit into a second cavity of the at least two cavities. At least a portion of the hold down may be configured to overlap with at least a portion of the transfer bar to hold the transfer bar in place. The transfer bar, when a final round is fired from a magazine in the lower receiver, may be pushed up by a bump in the magazine to transfer upward movement to the transfer bar that catches a bolt and holds the bolt open until activation of a release button.

Abstract: Examples of a self-releasing magazine and a magazine follower assembly thereof for firearms are described. The magazine follower assembly includes a casing and a self-releasing actuator received in the casing. When in use, the magazine follower assembly generally moves along a first axis with respect to the casing between a first position in the magazine when the magazine is fully loaded and a second position in the magazine when the magazine contains no ammunition cartridge. When the magazine follower assembly is at the second position in the magazine, the self-releasing actuator is configured to actuate a magazine release mechanism of the firearm to disengage the magazine from the firearm so that the magazine is detachable from the firearm.

Abstract: An auto-releasing method and arrangement of a detachable magazine for a firearm is provided. The auto-releasing arrangement is able to physically remind the operator that it is the right time to replace the magazine and to continue fire without having to performing a series of magazine reloading operations to reset the firearm into the fire mode, wherein the magazine will automatically be released and removed from the magazine receiving cavity of the firearm. In other words, the operator can simply insert another loaded magazine into the magazine receiving cavity while the firearm still has at least one cartridge chambered for firing, so that the time cost on performing such operations can substantially be saved to increase the survival probability during a gunfight or the like.

Abstract: Improvements to firearms that load cartridges from a magazine and/or a clip are disclosed. Specifically, improvements to slide assemblies and bolt assemblies to depress a cartridge in a magazine and/or a clip are provided. Such improvements include a sloped bottom-facing surface of the slide assembly and/or bolt assembly. The sloped bottom-facing surface is sloped along the length of the portion that contacts a cartridge in the magazine and/or clip when the slide assembly and/or bolt assembly reciprocates.

Abstract: A modular magazine well insert system accepts and latches different types of magazines including front and side catch styles. The system includes a plurality of magazine well inserts each having a common mounting interface which interfaces with a mounting feature formed in a receptacle of the firearm stock. The inserts may have a common basic configuration with some different features adapted for use with different magazine catch features, such as latching levers for front catch magazines or lateral apertures to access side catch magazines. A universal latch stud slideably mounted in the stock comprises features which cooperate with each of the magazine well inserts to retain and release both catch styles of magazines in the insert.

Abstract: A universal chassis for a firearm includes sidewalls. The sidewalls define a trigger well that is configured to receive a trigger mechanism. One of the sidewalls may define a cutout adjacent the trigger well. The chassis is configured to interchangeably receive a bolt action and a barrel for a shotgun, a muzzle loader, and a rifle. The cutout is sized and dimensioned to receive a lever arm of the bolt action.

Abstract: A breech catch mechanism for automatic and semi-automatic pistols includes a catch (502) of a breech comprising two longitudinal rails (400, 401) that are attached to pistol body or to an inserted container at one end in a rotary way and at the other end they are connected with a bridge (402). One of the rails (400, 401) is provided with an internal projection (405) protruding into a space between the rails (400, 401). The mechanism further includes the breech provided with a feeding bridge (250) and a cartridge feeder (500) positioned under the internal projection (405) and configured to push, after feeding of the last cartridge, from below against the internal projection (405), thus tilting the breech catch (502) from its basic position upward to an upper position in which the breech leans with its feeding bridge (250) against an outer surface (408) of the bridge (402) of the catch (502) of the breech to lock the breech in the rear position.

Abstract: An auto-releasing method and arrangement of a detachable magazine for a firearm is provided. The auto-releasing arrangement is able to physically remind the operator that it is the right time to replace the magazine and to continue fire without having to performing a series of magazine reloading operations to reset the firearm into the fire mode, wherein the magazine will automatically be released and removed from the magazine receiving cavity of the firearm. In other words, the operator can simply insert another loaded magazine into the magazine receiving cavity while the firearm still has at least one cartridge chambered for firing, so that the time cost on performing such operations can substantially be saved to increase the survival probability during a gunfight or the like.

Abstract: Examples of a self-releasing magazine and a magazine follower assembly thereof for firearms are described. The magazine follower assembly includes a casing and a self-releasing actuator received in the casing. When in use, the magazine follower assembly generally moves along a first axis with respect to the casing between a first position in the magazine when the magazine is fully loaded and a second position in the magazine when the magazine contains no ammunition cartridge. When the magazine follower assembly is at the second position in the magazine, the self-releasing actuator is configured to actuate a magazine release mechanism of the firearm to disengage the magazine from the firearm so that the magazine is detachable from the firearm.

Abstract: A firearm comprising: (i) an ammunition magazine which automatically ejects from the lower receiver of the firearm when the ammunition magazine is spent; (ii) a control group comprising a magazine release mechanism for releasing the magazine catch so that the ammunition magazine is detachable from the lower receiver, a bolt catch engage mechanism for engaging the bolt catch with the bolt carrier and retaining the bolt carrier in the retracted position, and a bolt catch release mechanism for releasing the bolt catch from the bolt carrier and allowing the bolt carrier to move forward, wherein the control group components can be operated by the user on either the left side or right side of the firearm; and (iii) optionally, a charging handle which can be operated by the user on either the left side or right side of the firearm.

Abstract: Apparatus and methods employing projectile feeding magazine storage and rapid fire toy launch apparatus in combination with dart funnel for feeding darts, anti-jamming loading and launching mechanisms, receiving a series of dart projectiles for rapid magazine loading and firing without mis-fed darts jamming up either the dart magazine or launcher. A magazine loading mechanism is positioned intermediate the funnel and the inserted magazine for receiving darts, and a stuffer mechanism above the inserted magazine penetrates the dart retaining lips of the magazine to stuff darts for loading into the magazine. The dart launching mechanism is positioned in the housing forward the inserted magazine.

Abstract: A magazine for use in a firearm includes first and second feed lips having folded portions to reinforce the strength of the respective feed lips. In some embodiments, the strength of the feed lips may be further reinforced by applying one or more welds. The feed lips are capable of withstanding greater amounts of force to avoid failure. Accordingly, the disclosed magazine and method for providing the magazine reduce the “spring back” effect present in conventional magazine feed lips. This removes the additional step of having to over-form the feed lips that is performed when forming a magazine having conventional feed lips. The result is a method for providing a magazine with folded feed lips that are capable of withstanding greater amounts of force to avoid warping, deforming, or other failure, wherein the method for forming the magazine is more accurate, more consistent, and involves fewer steps.

Abstract: Magazine release button interference pin assembly and AR-style lower receiver functions to prevent the depression of the magazine release button on an AR-style rifle while the upper receiver is closed or locked onto the lower receiver. Magazine release button interference pin assembly and AR-style lower receiver prevents magazine release and reloading while the upper receiver is closed or locked onto the lower receiver. Magazine release button interference pin assembly and AR-style lower receiver is a magazine release button interference pin assembly as well as a specially machined lower receiver to accept the magazine release button interference pin assembly. Magazine release button interference pin assembly includes a special magazine release button interference pin with at least two protrusions, a spring, and a retaining pin.

Abstract: An active magazine disengagement structure includes: a magazine body, adapted to be in engagement with at least one gun body; at least one trigger device, movably configured on the magazine body; at least one trigger device, movably configured on the magazine body, and positioned on one side of the trigger device and operated in coordination therewith; and at least one on-off device, movably configured on the magazine body, adapted to retain the magazine body with the gun body, and positioned on one side of the interlocking device and operated in coordination therewith to allow the magazine body to be separated from the gun body actively without any manual operation.

Abstract: A linear repeating firearm, with assisted ejection, including: a mechanism capable of recovering the energy resulting from pressure exerted when firing a round of ammunition by a gas operated system, to move a mobile assembly against return spring and including a stopper, a latch and a striker cooperating with a hammer controlled by a trigger. A locking mechanism is provided at the rear of the mobile assembly, to lock the mobile assembly in the compressed position of the return spring, after each shot. A manually actuatable unlocking assembly is capable of acting on the locking mechanism to release the mobile assembly and allow the assisted return of the assembly for reloading.

Abstract: A bolt hold open assembly for a rotary magazine may include a bolt hold open lever movable to a locked position to inhibit forward motion of the bolt after firing the last round of ammunition. The bolt hold open lever may be moved to the locked position by a bolt hold open riser that is activated by a paddle movable with the rotor assembly of the rotary magazine.

Abstract: A firearm and a kit for modifying a firearm is provided. The firearm has an upper receiver, a lower receiver, and a releasable magazine that releases when the upper receiver rotates away from the lower receiver. The firearm further has a firing pin with a striking end that has a cylindrical shape and a substantially sharp shoulder. A hammer is also provided with a depression disposed in a front surface thereof, the front surface configured to strike the striking end of the firing pin when the upper receiver is next to the lower receiver, and the depression configured to align with the striking end of the firing pin when the upper receiver rotates away from the lower receiver.

Abstract: A magazine for use in a firearm includes a housing defining an interior portion for housing one or more cartridges. A first feed lip is coupled to a first side of the housing and is operable to retain the one or more cartridges. The first feed lip includes a first arcuate portion extending from the housing and toward a centerline of the housing, and a second arcuate portion extending from the first arcuate portion and back toward the first side of the housing. A second feed lip is coupled to a second side of the housing and is operable to retain the one or more cartridges. The second feed lip includes a first arcuate portion extending from the housing and toward the centerline of the housing, and a second arcuate portion extending from the first arcuate portion and back toward the second side of the housing.

Abstract: An ambidextrous chassis for a firearm includes sidewalls and a plug. The sidewalls define a trigger well that is configured to receive a trigger mechanism. Each of the sidewalls also defines a cutout adjacent the trigger well. The plug is received within one of the cutouts of the sidewalls to seal the trigger well of the chassis. Each of the cutouts is sized and dimensioned to receive the plug.

Abstract: A loading device and method of using same with a rifle having a fixed magazine are disclosed. The loading device may comprise a housing having a channel, a plunger slideably disposed within the channel, and a spout extending away from the housing. The spout is configured to fit within an ejection port of the rifle. The plunger may include an articulating arm extending away from one end of the plunger, wherein the arm includes a plug disposed about one end for pushing ammunition cartridges into the fixed magazine. The loading device advantageously permits efficient and rapid reloading of ammunition into the fixed magazine.

Abstract: A magazine for use in a firearm includes first and second feed lips having folded portions to reinforce the strength of the respective feed lips. In some embodiments, the strength of the feed lips may be further reinforced by applying one or more welds. The feed lips are capable of withstanding greater amounts of force to avoid failure. Accordingly, the disclosed magazine and method for providing the magazine reduce the “spring back” effect present in conventional magazine feed lips. This removes the additional step of having to over-form the feed lips that is performed when forming a magazine having conventional feed lips. The result is a method for providing a magazine with folded feed lips that are capable of withstanding greater amounts of force to avoid warping, deforming, or other failure, wherein the method for forming the magazine is more accurate, more consistent, and involves fewer steps.

Abstract: A bolt hold open mechanism assembly is disclosed. The bolt hold open mechanism assembly contains a connector rod, a follower lever associated with the connector rod, a bolt stop associated with the connector rod, and a lifter lever comprising at least one protrusion configured to interact with a magazine follower.

Abstract: Examples of a self-releasing magazine and a magazine follower assembly thereof for firearms are described. The magazine follower assembly includes a casing and a self-releasing actuator received in the casing. When in use, the magazine follower assembly generally moves along a first axis with respect to the casing between a first position in the magazine when the magazine is fully loaded and a second position in the magazine when the magazine contains no ammunition cartridge. When the magazine follower assembly is at the second position in the magazine, the self-releasing actuator is configured to actuate a magazine release mechanism of the firearm to disengage the magazine from the firearm so that the magazine is detachable from the firearm.

Abstract: A universal chassis for a firearm includes sidewalls. The sidewalls define a trigger well that is configured to receive a trigger mechanism. One of the sidewalls may define a cutout adjacent the trigger well. The chassis is configured to interchangeably receive a bolt action and a barrel for a shotgun, a muzzle loader, and a rifle. The cutout is sized and dimensioned to receive a lever arm of the bolt action.

Abstract: A magazine well unit and a method are disclosed. The magazine well unit may have an upper portion having a firearm interface; a lower portion; a proximal portion; and a distal portion. The distal portion may have a magazine well to removably receive a box magazine. The magazine well may have at least one fore stop and at least one aft stop, the at least one fore stop and the at least one aft stop shaped to prevent the box magazine from passing beyond the upper portion of the magazine well unit. At least one of the fore stop or the aft stop may have an upper portion region having a surface for engaging the firearm.

Abstract: A firearm having a lower receiver is provided. The receiver is adapted to couple with a plurality of upper receivers having different calibers. The lower receiver comprises a receiver extension having an opening therein. A spring is disposed within the opening. A buffer member is provided having a first portion having an end. The buffer member is coupled to the spring within the opening, wherein the buffer member is movable between a first position where the end is within the opening and a second position wherein the end external to the opening.

Abstract: An improved magazine catch for semi-automatic rifles containing a mechanism that requires the operator to take down the action of the rifle. The mechanism may release the magazine immediately upon taking down the action, or may require the operator to release the magazine manually.

Abstract: Aspects of a magazine for use with a repeating firearm are described. One unique aspect is that the magazine is fabricated completely from a translucent polymer that is highly resistant to mechanical, chemical, and thermal failures commonly affecting magazines. Another aspect of the magazine is the inclusion of a coupling system fully integrated into the housing that allows magazines to be securely joined together without the use of tools or additional components. A further aspect of the magazine is the easy release button design allowing the magazine to be disassembled by large or gloved fingers without need for a tool to depress the release button.

Abstract: A slideable ejection port cover having at least two configurations, an open configuration in which shell ejection via the ejection port is enabled, and a closed configuration in which the ejection port is substantially immovably covered; the ejection port cover comprising a shutter operatively connected to a locking component, the shutter slideable along a longitudinal axis of the receiver; wherein the locking component comprises a spring configured, at such times as the ejection port cover is in the closed configuration, to hold the locking component in a pressure-applying mode against the receiver, the pressure-applying mode being a default mode, thereby immobilizing the shutter relative to the receiver, and the locking component configured to compress the spring when pulled manually away from the receiver, thereby enabling reversible transformation of the ejection port cover from the closed configuration to the open configuration.

Abstract: AR-style lower receiver with magazine release button interference pin assembly functions to prevent the depression of the magazine release button on an AR-style rifle while the upper receiver is closed or locked onto the lower receiver. AR-style lower receiver with magazine release button interference pin assembly prevents magazine release and reloading while the upper receiver is closed or locked onto the lower receiver. AR-style lower receiver with magazine release button interference pin assembly is a magazine release button interference pin assembly as well as a specially machined lower receiver to accept the magazine release button interference pin assembly. Magazine release button interference pin assembly includes a special magazine release button interference pin with at least two protrusions, a spring, and a retaining pin.

Abstract: A bolt hold open linkage incorporated into a lower receiver of a firearm for elevating a bolt catch into contact with a forwardly displacing bolt associated with an upper receiver reciprocating action assembly. An elongated central stem has a forward end and an opposite rearward end, a shoulder being supported, via an extending portion, from the rearward end. A pair of axially aligning mounting pins are supported at spaced apart locations of the lower receiver above a magazine receiving well incorporated into the lower receiver, the pins mounting the opposite ends in pivoting fashion about a centerline extending between the axially aligning pins which is offset from the shoulder.

Abstract: A magazine for use in a firearm includes first and second feed lips that are folded to reinforce the strength of the respective feed lips. In some embodiments, the strength of the feed lips may be further reinforced by applying one or more welds. The feed lips are capable of withstanding greater amounts of force to avoid failure. Accordingly, the disclosed magazine and method for providing the magazine reduce the “spring back” effect present in conventional magazine feed lips. This removes the additional step of having to over-form the feed lips that is performed when forming a magazine having conventional feed lips. The result is a method for providing a magazine with folded feed lips that are capable of withstanding greater amounts of force to avoid warping, deforming, or other failure, wherein the method for forming the magazine is more accurate, more consistent, and involves fewer steps.

Abstract: A firearm, more specifically a rack and pinion lever-action rifle with a receiver, a barrel having a chamber and joined to said receiver, a cartridge magazine with a cartridge, a sliding bolt with a rack surface and an extractor, and a pinion in direct contact with the bolt. A claw on the pinion delivers a cartridge from the cartridge magazine to the extractor. A lever member is also connected to the receiver with the pivot pin and alternates between a coupled configuration and a partially uncoupled configuration with the pinion via a locking pin. A decoupling pin releases the pinion from a coupled configuration with the lever member. A bolt pin couples with a locking groove in a sliding bolt cap on the locked sliding bolt. A hammer, hammer spring, sear, trigger, and firing pin interact to discharge the firearm. An ejector ejects spent cartridges out of the receiver.

Abstract: Invention refers to the armament industry, namely to percussion firing mechanism of the pistol and according to the invention, the barrel is moving inside the frame parallel to the slide axis only, at that the cartridge is located in the magazine in alignment with the barrel, the hammer is performed with firing pin located in the slide lateral channel and has the ledge directed upwards to interact with the hammer spring and the ledge, directed downwards to interact with pistol trigger mechanism, at the rear part of the slide, under the hammer the port is performed, which contains the hammer spring module, located in case, which is fixed at the front part of the slide port by means of catches and by means of the cross pin at the rear part and contains the tube-form extractor with collar for the interaction with hammer ledge, at that the front end of the guide is inserted in extractor lateral hole, but its rear end intrudes in the hole, performed at the guiding socket base, the hammer spring, located inside the

Abstract: Rifle magazines with release lever actuators have a magazine body defining a chamber for receiving ammunition, the body having a catch feature adapted for selectable engagement by the magazine release latch, a latch actuator element mounted to the magazine body proximate to the catch feature, and the latch actuator element being movable with respect to the body such that movement of the latch actuator element motivates the magazine release latch from the secured position to the released position. The latch actuator element maybe pivotally connected to the magazine body. The latch actuator element may have a first portion proximate the catch feature, and a second portion remote from the catch feature. The latch actuator may have an intermediate portion pivotally connected to the magazine body. The magazine may have major planar sidewalls, and the latch actuator may pivot on a pivot axis perpendicular to the sidewalls.

Abstract: Firearm magazine loader, associated components, and methods of use. The loader can be configured to load rounds of ammunition from a stripper clip into a firearm magazine. A stripper clip ejector can eject stripper clips from the loader. An ammunition transfer tool can be used for loading rounds of ammunition not on a stripper clip into the firearm magazine loader.

Abstract: A shotgun ammunition conversion system has a detachable magazine well having a sleeve defining a rectangular passage adapted to removably receive an ammunition magazine, a boss extending forward of the sleeve and at a level above at least a portion of the sleeve, the boss being adapted to be received in the rear aperture of the magazine tube, and a tang extending rearward of the sleeve and defining a tang aperture operable to receive a fastener associated with a shotgun frame to secure the magazine well to the shotgun with the sleeve proximate and aligned with the loading port when the boss is received in the rear aperture of the magazine tube. The boss may have a lower cylindrical surface portion operable to contact a lower portion of the magazine tube adjacent to the rear aperture. The boss may be a cylindrical body.

Abstract: Drop-in fixed magazines have a tubular body defining an elongated passage and having a lower end and an upper end, the body having an exterior surface that closely fits the profile of the magazine well, and the body including protrusions of the upper end extending laterally beyond the profile. The protrusions may engage a surface of the rifle to limit downward movement of the body within the magazine well. The rifle may have to be operationally disabled to enable the magazine to be installed into or removed from the magazine well. The rifle may include an upper receiver and a lower receiver, the lower receiver may have a top, and the upper receiver may have to be removed from lower receiver, thereby exposing the top of the lower receiver, in order to enable the magazine to be installed into or removed from the magazine well.

Abstract: A magazine carrier for repeating firearms is provided which securely engages a magazine at multiple locations, and which may be easily actuated to remove the magazine, for example, with either the user's trigger hand near the trigger or with the user's other hand while gripping the magazine for removal. In various example embodiments the magazine carrier may comprise a pivoting magazine release member comprising a perimeter frame defining an opening there through, and having an offset pivoting axis and engagement lugs at opposite corners on either side of the axis. Example firearms comprising the magazine carrier are disclosed along with example methods of use.

Abstract: Various embodiments of a magazine for a firearm are described. In one aspect, a magazine for a firearm may include a magazine shell having a first end, a second end opposite the first end, and a plurality of sidewalls between the first end and the second end. The first end may have an opening and may be configured to attach to the firearm. The second end may include a bottom plate. At least a first primary sidewall of the sidewalls may include a deformable concave area that caves inward with respect to the magazine shell such that the concave area bulges outward with respect to the magazine shell to accommodate one or more ammunition cartridges with of a first caliber and that the concave area does not bulge outward to accommodate one or more ammunition cartridges of a second caliber smaller than the first caliber.

Abstract: A magazine locking assembly is provided for preventing removal of a magazine from a firearm having a receiver, a magazine, and a bolt carrier assembly a without disassembly of the firearm. The locking assembly includes a magazine block assembly secured adjacent the magazine well of the firearm, a magazine safety pin for securing the magazine block assembly adjacent the magazine well of the firearm, a safety pin cover movably attached to the firearm adjacent the bolt carrier assembly for concealing the safety pin head of the magazine safety pin, and a cover detent pin configured to engage the safety pin cover passageway to prevent the safety pin cover from moving. When the magazine locking assembly and firearm are in an assembled configuration the safety pin cover conceals the safety pin head of the magazine safety pin and the bolt carrier assembly conceals the cover detent pin.

Abstract: Shotshell type ammunition includes a hull, a wad member disposed within the hull, and at least one projectile disposed within at least partially the hull. The hull has a rimless proximal end that includes a primer for firing the ammunition. The hull also has a seat surface for seating the hull against a complementary seat surface in a firing chamber of a firearm. The seat surface is located a distance from an outer end surface of the hull at the rimless proximal end. The hull further includes an outer side surface extending from the rimless proximal end of the hull to the seat surface of the hull. Methods of fabricating such ammunition include forming such a hull, and providing a wad member and one or more projectiles at least partially within the hull.

Abstract: An alignment and locking assembly includes an alignment tab having an engagement surface and a feed ramp extending proximally from the engagement surface. The assembly also includes a barrel extension having a distal end, and a proximal end. The proximal end defines a slot configured to matingly receive the engagement surface.

Abstract: A shotgun ammunition conversion system has a detachable magazine well having a sleeve defining a rectangular passage adapted to removably receive an ammunition magazine, a boss extending forward of the sleeve and at a level above at least a portion of the sleeve, the boss being adapted to be received in the rear aperture of the magazine tube, and a tang extending rearward of the sleeve and defining a tang aperture operable to receive a fastener associated with a shotgun frame to secure the magazine well to the shotgun with the sleeve proximate and aligned with the loading port when the boss is received in the rear aperture of the magazine tube. The boss may have a lower cylindrical surface portion operable to contact a lower portion of the magazine tube adjacent to the rear aperture. The boss may be a cylindrical body.