Abstract: A ramrod for a muzzleloading firearm and method of using the same. The ramrod comprises an elongated ramrod outer body having a hollow portion and an exterior size and shape permissible for insertion into the firearm bore. An extension member is movable within the outer body hollow portion, and includes a clasping member which is foldable between a stowed position in which the clasping member is generally aligned with the longitudinal axis of the outer body to a working position in which the clasping member makes a substantial angle with respect to the outer body longitudinal axis. The extension member is movable between a retracted position wherein a first length of the extension member is within the outer body hollow portion to an extended position wherein the first length of the extension member is outside the outer body hollow portion.

Abstract: Provided herein are systems and methods for pairing a remote controller unit and a control unit, using a smart safety pin. More specifically, but not exclusively, disclosed are detonation control systems and methods, which include a detonation controller unit, a safety pin configured to engage with a safety pin holder of the detonation unit, and a remote controller unit configured to receive the safety pin, wherein, only when the safety pin is removed from the detonation controller unit and engaged with a remote controller unit, the remote controller unit is paired with the detonation controller unit and capable of communicating therewith.

Abstract: An electronic aiming system includes an electro-mechanical reticle having a plurality of electrically powered holdover indicators disposed on a primary crosshair of the reticle, the holdover indicators configured to be individually selected and energized to a visible state, a rangefinder configured to generate range data, a computing device configured to generate ballistics data; and a processor configured to receive the range data and ballistics data, select, based at least in part on either or both of the range data and ballistics data, one or more of the holdover indicators, and energize the selected holdover indicator or indicators to the visible state.

Abstract: A firearm activation and monitoring system which tracks, monitors, and automatically prevents a firearm from firing when a user is not in a suitable state of mind or is not an authorized user, as well as a method for activating and monitoring a firearm. The firearm activation and monitoring system generally comprises a firearm having a trigger and grip area, a plurality of biometric sensors located on the grip area which measure biometric data of a user, a trigger interlock, and a main microcontroller. The trigger interlock prevents the trigger from firing the firearm when the trigger interlock is in its normal or default position. To unlock the trigger, the user holds the grip area to activate the biometric sensors, and if the user is in an acceptable mental state, the main microcontroller will send an electrical signal to the trigger interlock, which unlocks the trigger and allows the user to pull the trigger of the firearm.

Abstract: Systems and methods for an adjustable gas block are described. Systems may include an adjustment subassembly. The adjustment subassembly may include a valve stem end with a front-most portion larger in diameter than the rear-most portion and a boss extending from the forward portion of the valve stem end; a valve ring surrounding the boss of the valve stem end; a valve threaded portion for receiving the boss of the valve stem end and having a threaded portion; and a valve rotator coupled to the valve threaded portion for adjusting the flow of gas. Systems may include a gas block assembly. The gas block assembly may include a gas block through hole; a first duct to direct pressurized gas from a barrel to a plenum; a second duct to direct a regulated volume of gas to a gas operating system; a seat valve to control the regulated volume of gas to the gas operating system; and a gas block threaded portion for coupling to the valve threaded portion.

Abstract: Provided is a drop-in unit end of stoke firearm recoil damper for a firearm having a recoil buffer that linearly reciprocates in a recoil tube. The drop-in damper unit includes a housing cup and a resilient cushion. The cup is configured to fit within a recoil tube and has an internal flange. The resilient cushion is configured to fit within the housing against the flange. The cushion has a tubular shape with a longitudinal central opening and first and second frustoconical end surfaces. Both of the frustoconical end surfaces extend in a forward direction. The cushion is resiliently deformed toward reversing the direction of the frustoconical surfaces in a rearward direction when impacted by the buffer.

Abstract: An improved bolt and bolt carrier with integral gas key having an extension nozzle threadedly secured and pinned to the gas key for use with a direct gas operated firearm is provided. The extension nozzle is designed to receive a portion of the host firearm's gas operating system. The firing pin retaining pin is oriented so as to expose its widest profile to the firing pin's annular flange, increasing its service life. The bolt has a plurality of lugs extending from its forward end. The extractor recess is constructed so that the face of the bolt is round and the adjacent lugs fully supported. The extractor engages approximately 17% more of a seated ammunition cartridge's rim as compared to the prior art AR15/M16 extractor. The result is an improved bolt and bolt carrier which provides for increased operational reliability.

Abstract: A detachable magazine for firearms is provided that includes a magazine body having a quad stack region and a transition region and a follower assembly having a follower body, the follower body configured to travel through both the quad stack region and the transition region. The detachable magazine has canted rear walls to accommodate cartridges with a range of lengths.

Abstract: An ammunition feeding device is disclosed. The ammunition feeding device comprises a body, a follower inside the body, a magazine spring contacting the follower, and a spring latch attached to the body, where the spring latch extends from a position inside the body to a position outside the body through an opening in the top of the body.

Abstract: The present invention belongs to the technical field of shooting toys, and relates to a toy gun. The toy gun includes: a gun body support, where a gun barrel communicating with a chamber, and a pellet supplying pipeline communicating with a pellet clip bin and the chamber are arranged on the gun body support; a piston assembly slidably mounted on the gun body support, where a firing spring is arranged between the piston assembly and the gun body support, and the firing spring is used for, through elastic force, driving the piston assembly to generate compressed gas to fire pellets; a motor, where the motor, through a gear set, drives the piston assembly to slide to compress the firing spring; a power supply electrically connected to the motor and used for supplying electricity.

Abstract: A method and apparatus for using a tandem sub to connect one or more perforating gun assemblies, having a rotational bearing mechanism lining the inner diameter in both ends to allow the charge tube assembly to rotate within the gun body.

Abstract: The present folding stock adapter can be used with many types of military-type assault rifles that typically comprise a receiver extension, buffer and action spring. The present folding stock adapter can be used to add a folding capability to a standard stock allowing it to fold against a rifle's receiver when the weapon is not in use, thus reducing the overall length of the weapon. This reduction in length can facilitate its maneuverability, storage and transport in cramped quarters. The present device can also allow for the quick unfolding of the stock in order to allow the weapon to function and be fire normally.

Abstract: A double firing mode semi-automatic handgun has a frame, a barrel, a spring biased slide, and a firing assembly with a firing rod operated by a trigger. A frame pocket is provided in a rear part of the frame which is open from above, in which an associated frame inset or an associated other frame inset can be inserted. A rear part of the slide has a slide pocket in which an associated slide inset or an associated other slide inset can be inserted. A firing pin is arranged in front of the connection site of the frame pocket and behind the barrel extending to a cartridge receiving chamber. A rearward motion of the firing rod causes a surface to be pushed on the frame inset and transforms into an axial hit on the firing pin by a spring bias or by the release of a lock.

Abstract: A diopter adjustment mechanism comprises a scope tube with a first female thread and a second female thread. The first female thread has a first pitch and is disposed on the scope tube forming a spiral thread and lands between the spiral threads. The second female thread has a second pitch and is disposed on the lands of the first female thread. A jam nut has a male thread corresponding to and engaging the second female thread. The pitch of the first female thread is greater than the pitch of the second female thread.

Abstract: A metal or alloy insert may be used to reinforce the lip area of a firearm ammunition magazine. The metal or alloy insert may be positioned at the top of the magazine and on the interior of the magazine body, and may be overmolded by a polymer during the molding process to manufacture the magazine body.

Abstract: A magazine for a firearm is described. The magazine may include a magazine housing comprising a recess at a front wall of a magazine housing top portion facing a trigger bar of the firearm. The magazine may further include a locking unit configured to move between a locked position and an unlocked position. The magazine may further include a radio-frequency identification (RFID) reader disposed in the magazine housing. The RFID reader is configured to detect presence of a wearable device in proximity to the trigger bar. The magazine may further include a control unit configured to control locking unit movement based on inputs from the RFID reader. The control unit may be configured to move the locking unit from the locked position to the unlocked position when the RFID reader detects presence of the wearable device in proximity to the trigger bar.

Abstract: High pressure compressed gas pressure vessels and devices utilizing such vessels are disclosed herein. More particularly, aspects of the present invention are directed to high pressure (i.e., nitrogen or N2 based) pressurized gas cylinders with pierceable membranes recessed from the opening of the pressure vessel such that prior art piercing mechanisms cannot pierce the membrane for safety purposes. Additionally, aspects of the present invention are directed to pressurized gas operated devices with elongated pins for piercing pressure vessels with recessed pierceable membranes.

Abstract: A recoil mechanism has a hollow cylinder having a first portion adjacent to a closed end having a first inner diameter and a second portion adjacent to an open end having a second inner diameter, and an outwardly facing flange at the open end thereof. An outer spring is positioned over the hollow cylinder and has a second end in contact with the outwardly facing flange. A rod assembly includes a rod coupled to an endplate at a first end thereof and an enlarged portion towards a second end thereof, a washer mounted on the rod between the enlarged portion and the endplate, and a rod spring mounted over the rod between the small washer and the endplate. Moreover, the rod assembly is positioned within the hollow cylinder by inserting the second end of the rod into the open end of the hollow cylinder.

Abstract: A lower receiver assembly of a rifle including a lower receiver having a magazine well formed thereon between a distal end and a proximal end, the lower receiver operable to receive a trigger assembly including a trigger, a hammer, and a firing pin. The lower receiver can include an operating rod retention tab coupled with an upper surface of the receiver and the operating rod retention tab extends above the upper surface and is operable to be received in a groove formed in a receiver of an upper receiver.

Abstract: A firearm comprising: a frame having a barrel mount facility; the barrel mount facility having a barrel engagement portion and a threaded portion; a rear barrel portion having a rear end defining a chamber and configured to connect to the barrel engagement portion; the rear barrel portion having a front end having a first mating facility; a forward barrel portion having a rear end having a second mating facility configured to connect to the first interconnection facility; the forward barrel portion having a first retention facility proximate the rear end; an elongated barrel nut having a forward end with a second retention facility configured to bias the first retention facility in a rearward direction, the barrel nut having a rear end having nut threads configured to connect with the threaded portion of the frame.