A dual magazine release system for a firearm has a housing attachable to a firearm. The housing includes first and second magazine holders, the first magazine holder positioned to retain a first magazine to feed ammunition to the firearm and the second magazine holder positioned in front of a trigger of the firearm and configured to retain a spare second magazine. A magazine retaining and release system is coupled to the housing and configured to retain the first magazine in the first magazine holder and to retain the second magazine in the second magazine holder and to selectively release the first magazine or the second magazine independently from one another or to substantially simultaneously release the first and second magazines from the first and second magazine holders, respectively, upon actuation of the magazine retaining and release system by a user.

Representative implementations of devices and techniques provide a handgun lower receiver to be used with firing components from a donor handgun. The lower receiver includes additional features to improve stability during a triggering event. The additional features can include a rear attachment port comprising a receptacle with a cavity for receiving a brace extension component. The receptacle can have one or more coupling features for coupling the brace extension component to the rear attachment port.

A brace assembly includes a firearm attachment member to which a pivot arm is pivotally attached at a pivot. The pivot arm includes a brace member at an end opposite to the pivot. The firearm attachment member includes firearm mounting structure which includes a receiver support shelf for supporting thereon a receiver of a firearm, and a distal abutment against which a forward end of a receiver and/or a slide of the firearm is abuttable.

A brace assembly includes a firearm attachment member to which a pivot arm is pivotally attached at a pivot. The pivot arm includes a brace member at an end opposite to the pivot. The firearm attachment member includes firearm mounting structure which includes a receiver support shelf for supporting thereon a receiver of a firearm, and a distal abutment against which a forward end of a receiver and/or a slide of the firearm is abuttable.

This invention is directed to a handgun device and uses thereof

A pistol arm brace is provided with a slide portion and a stabilizing structure extending from the slide portion. The slide portion is configured to connect with a receiver extension of a pistol. The stabilizing structure includes a spring-loaded clamping portion configured to secure the stabilizing structure to a user's forearm based on urging of one or more springs in the spring-loaded clamping portion.

A pistol arm brace is provided with a slide portion and a stabilizing structure extending from the slide portion. The slide portion is configured to connect with a receiver extension of a pistol. The stabilizing structure includes a spring-loaded clamping portion configured to secure the stabilizing structure to a user's forearm based on urging of one or more springs in the spring-loaded clamping portion.

Apparatus and associated methods relate to a handgun brace arranged with a rigid structure extending radially away from a handgun trigger guard, and having a forward-facing surface configured to physically engage with at least one finger of a user's non-primary grip hand in a stable position below the handgun's barrel and in front of the handgun's trigger, such that a counter-force applied by the finger(s) at the forward-facing surface tends to prevent the handgun (especially the muzzle), from rising or rotating in response to shooting, such as due to muzzle jump. In an illustrative example, the brace may be releasably fixed to the handgun (e.g., as a modular handgun accessory). A handgun brace that substantially mitigates the unwanted effects of muzzle jump/recoil may advantageously yield higher shooting accuracy and beneficially promote proper handgun grip positioning.

A pistol conversion kit may be constructed and arranged for converting a pistol to a bull-pup format rifle by attaching an elongated barrel to the pistol. The pistol conversion kit may include a two-part chassis defining a compartment into which the pistol and elongated barrel may be seated behind a handle and trigger guard integrated within the chassis such that the pistol is located behind the pistol conversion kit trigger thereby positioning the pistol in a bull-pup configuration within the chassis. The pistol conversion kit may include a number of sub-assemblies for operating the pistol seated within the chassis and may further include a barrel safety system arranged for preventing use of the pistol conversion kit trigger unless a properly sized elongation barrel is attached to the pistol.

A pistol conversion kit may be constructed and arranged for converting a pistol to a bull-pup format rifle by attaching an elongated barrel to the pistol. The pistol conversion kit may include a two-part chassis defining a compartment into which the pistol and elongated barrel may be seated behind a handle and trigger guard integrated within the chassis such that the pistol is located behind the pistol conversion kit trigger thereby positioning the pistol in a bull-pup configuration within the chassis. The pistol conversion kit may include a number of sub-assemblies for operating the pistol seated within the chassis and may further include a barrel safety system arranged for preventing use of the pistol conversion kit trigger unless a properly sized elongation barrel is attached to the pistol.