Abstract: A breechblock assembly includes a breechblock configured to reciprocate along a top of the firearm receiver between a recoil position and a battery position. An actuator is coupled to the breechblock and is configured to move between first and second positions. A lever on the breechblock in contact with the actuator is movable between a blocking position and a non-blocking position. For example, the lever is generally oriented along the central axis and extends rearward beyond a proximal face of the breechblock. When the actuator is in the first position, the lever is in the blocking position. When the actuator is in the second position the lever is in the non-blocking position. When assembled in a firearm, an end of the lever is positioned to block the hammer from striking the firing pin when the breechblock is out of battery by more than a predefined distance.

Abstract: A target sight system includes a base portion with a gun-mounting interface allowing the sight to be firmly fastened to a shooting device. The base also includes a power supply, a target light generator, and a light-passing surface through which the target light passes between the target light generator and a target. The sight system also includes a cover that is detachably removable from the base portion.

Abstract: A firearm stock includes a stock body slidably mounted on a beam. A lever attached to the stock body can be moved between a locked position, a first unlocked position, and a second unlocked position, where operating the lever moves a locking mechanism between locked and unlocked positions. For example, when the lever is in the first unlocked position, the locking mechanism permits longitudinal adjustment of the stock body along the beam. When the lever is in the second unlocked position the locking mechanism permits the stock body to be slidably removed from the beam. In one example, the lower portion of the stock body defines a plurality of cam pathways for pins that secure the lever to the stock body. Forward cam pathways permit either a pivoting movement about the rear pin or a downward and forward shifting movement.

Abstract: A magazine for rimmed cartridges includes a magazine tube having first left and right ribs on an inside of the magazine tube extend inward from a forward portion of opposite sidewalls and are laterally spaced by a first spacing. Second left and right ribs on an inside of the magazine tube extend inward from a rear portion of opposite sidewalls and are laterally spaced by a second spacing that is greater than the first spacing. When the magazine is filled to capacity with rimmed cartridges, cartridges in the magazine are arranged in two offset columns with projectiles of the rimmed cartridges laterally spaced from a median plane by a first distance and rims of the rimmed cartridges laterally spaced from the median plane by a second distance that is greater than the first distance. Also disclosed is a baseplate that attaches to a magazine tube using a snap fit.

Abstract: A firearm including a barrel bushing is disclosed. The barrel bushing provides for guidance of the slide without a need for forward rails. The barrel bushing is retained by a bushing stop that allows the slide to be removed while the recoil spring and bushing are retained on the barrel.

Abstract: A breechblock assembly includes a breechblock configured to reciprocate along a top of the firearm receiver between a recoil position and a battery position. An actuator is coupled to the breechblock and is configured to move between first and second positions. A lever on the breechblock in contact with the actuator is movable between a blocking position and a non-blocking position. For example, the lever is generally oriented along the central axis and extends rearward beyond a proximal face of the breechblock. When the actuator is in the first position, the lever is in the blocking position. When the actuator is in the second position the lever is in the non-blocking position. When assembled in a firearm, an end of the lever is positioned to block the hammer from striking the firing pin when the breechblock is out of battery by more than a predefined distance.

Abstract: An adjustable firearm sight includes a body made of a flexible and resilient material. The body includes an elevation arm connected to the body and extending proximally therefrom to a sight portion, where the elevation arm and the body comprise a monolithic structure. A cam body below the elevation arm has a cam surface in contact with a bottom surface of the elevation arm, where the cam body is rotatable to change a vertical position of the sight portion. Also disclosed is a front sight assembly where a sight element is disposed in a longitudinal bore through a sight body. A proximal end of the longitudinal bore has a reduced size. At a distal end, a retention pin is disposed in a retention bore that extends transversely to and intersects the longitudinal bore such that the retention pin occupies the longitudinal bore to retain the sight element.

Abstract: A sight assembly for a firearm includes an optical sight configured for mounting to a firearm. The optical sight includes a sight body retaining a lens and has a point-of-aim indicator visible on the lens. A light source on the sight body is configured to communicate a firearm status to a user, such as whether a round is chambered in a chamber of the firearm. In one example, the sight assembly can be mounted to a handgun or a rifle. In some embodiments, the optical sight is configured as a reflex sight.

Abstract: A spring for a firearm magazine includes a top attachment leg, a plurality of upper coils connected to the top attachment leg, a plurality of intermediate coils below the upper coils, and a bottom attachment leg below the plurality of intermediate coils. The upper coils are sized and shaped to nest within the intermediate coils when the spring is fully compressed, reducing the solid height of the spring. In some embodiments, at least two complete upper coils and/or at least two complete lower coils nest within intermediate coils. In one example, at least some coils have a rectangular coil shape. The spring can be configured for use in a handgun magazine or a rifle magazine, for example. A handgun magazine and a magazine components kit including the spring are also disclosed.

Abstract: An assembly is configured for retaining a muzzle accessory mounted on a firearm barrel or to a muzzle adapter on the barrel, where the muzzle accessory has a mount with female threads on an inside and male threads on an outside of the mount. The outside of the muzzle adapter has male threads and a bearing surface. A locking nut has inner female threads and an inside taper located proximally of the female threads. A locking ring has a tapered outside face configured to engage the inside taper of the locking nut and an inside face configured to engage the bearing surface. When assembled, the mount is threaded onto the muzzle adapter and the locking nut is threaded onto the accessory mount with the locking ring engaging the bearing surface of the muzzle adapter and the inside taper of the locking nut.

Abstract: A reticle for an aiming device includes a number of holdover indicators on the reticle that may be individually selected; an input for receiving ballistics data; and a processor configured to, based at least in part on the received ballistics data, select one or more of the holdover indicators; and cause the selected holdover indicator or indicators to visibly change state on the reticle. Methods of operating a digital reticle are also described. Further disclosed is a system that includes the reticle above, as well as a rangefinder for providing range data and a ballistics calculator for providing ballistics data. Some variations include ballistics data stored in a memory.

Abstract: An accessory mounting system for adjustably mounting an accessory to a firearm accessory rail having a series of slots includes a rail clamping system structured to clamp to the firearm accessory rail, a mounting member having a tab structured to engage with one of the series of slots of the firearm accessory rail; and an adjustment mechanism that allows the accessory to be moved along a long axis of the firearm accessory rail less than a slot pitch of the firearm accessory rail.

Abstract: A handgun has a grip portion defining a magazine well, the grip portion having a web region configured to be grasped between a thumb and an index finger, a forward portion of the web region defining a first width. The grip portion also has a palm region configured to be grasped by a user's palm, the palm region defining a second width greater than the first width. A magazine is configured to be received in the magazine well and includes a hollow magazine tube with a single-stack portion and a double-stack portion positioned below the single-stack portion. For example, front portions of the opposite tube sidewalls have a stepped shape between the upper tube end and the double-stack portion.

Abstract: A bipod assembly includes a first yoke configured to be attached to a firearm. A second yoke is pivotably attached to the first yoke. Right and left legs are pivotably connected to the second yoke and movable between an open position and a closed position. The bipod assembly is movable between a stowed and locked position, a stowed and unlocked position, a deployed and unlocked position, and a deployed and locked position. In a locked position, part of each leg engages the first yoke to maintain the leg's open or closed position as well as the leg's deployed or stowed position. The bipod assembly enables one-hand deployment from a stowed state.

Abstract: A recoil assembly for a rifle includes a barrel assembly, a bolt, bolt actuator, and a buffer assembly. The barrel assembly includes a barrel secured to a barrel extension. The barrel assembly is slidably received in the receiver and the barrel extension is coupled to a hydraulic buffer assembly located below the barrel extension. The hydraulic buffer assembly is configured and arranged to arrest rearward movement of the barrel assembly when the rifle is fired. An op-rod spring is coupled to an op rod extending that can be actuated by a gas piston assembly on the barrel. The op-rod spring is configured and arranged to arrest rearward movement of the bolt assembly.

Abstract: A suppressor for a firearm includes a baffle stack having an outer surface, the baffle stack comprising a plurality of baffles that define an inner chamber extending along a central axis of the baffle stack and a projectile pathway through the baffle stack along the central axis. An outer housing is around the baffle stack and has an inner surface separated from and confronting the outer surface of the baffle stack. An outer chamber is defined between the inner surface of the outer housing and the outer surface of the baffle stack. Flow-directing structures are in the outer chamber and are arranged to direct gases into or out of the inner chamber.

Abstract: A target dot sight includes a target illumination sensor that senses the amount of illumination at a target, rather than merely sensing the ambient sight of the entire operating environment. Then, based on the sensed target illumination, the target dot sight may automatically compensate for the brightness of the target.

Abstract: A recoil assembly for a rifle includes a baseplate comprising a baseplate body extending longitudinally along a central axis from a proximal end to a distal end, the baseplate body defining an opening extending along the central axis and configured to receive an end of a recoil spring guide rod. A latch plate extends up from the top surface of the baseplate body, the latch plate defining a charging handle opening a catch surface for a charging handle latch. In use, the recoil baseplate can be received in an aperture defined in the upper receiver of a rifle, where one or more recoil spring guide rods are received in the opening in the baseplate body. A charging handle can be slidably received through the charging handle opening and charging handle aperture of the upper receiver.

Abstract: Disclosed is chamber flag for a firearm. In one example the chamber flag has a body portion extending along a central axis and a chamber portion extending axially from the body portion, where the chamber portion is sized and configured to be received in a chamber of the firearm. A flag portion extends from the flag body in a direction transverse to the central axis. An arm is connected to the body portion and extends circumferentially around a left side of the body portion in a radially spaced relationship with the body portion, where at least the arm is made of a flexible and resilient material.

Abstract: A handgun has a grip portion defining a magazine well, the grip portion having a web region configured to be grasped between a thumb and an index finger, a forward portion of the web region defining a first width. The grip portion also has a palm region configured to be grasped by a user's palm, the palm region defining a second width greater than the first width. A magazine is configured to be received in the magazine well and includes a hollow magazine tube with a single-stack portion and a double-stack portion positioned below the single-stack portion. For example, front portions of the opposite tube sidewalls have a stepped shape between the upper tube end and the double-stack portion.