A rest for a pistol having a takedown passage and defining a major side plane. The rest comprises a post configured to be closely received by the passage; a planar rest element pivotally connected to the post and movable between an active position perpendicular to the side plane and a retracted position parallel to the side plane; and the rest element being biased to the active position.

A rest for a pistol having a takedown passage and defining a major side plane. The rest comprises a post configured to be closely received by the passage; a planar rest element pivotally connected to the post and movable between an active position perpendicular to the side plane and a retracted position parallel to the side plane; and the rest element being biased to the active position.

A modular firearm grip assembly has a frame defined by a front grip strap and a rear grip strap. The front grip strap defines a front lateral attachment point and rear lateral attachment point, and the rear grip strap has a first attachment coupling interface. A grip extension defined by a front extension strap and a rear extension strap is coupled to the frame at the respective one of the front lateral attachment point and the rear lateral attachment point thereof. The grip extension includes a second attachment coupling interface engaged to the first attachment coupling interface of the frame.

A modular firearm grip assembly has a frame defined by a front grip strap and a rear grip strap. The front grip strap defines a front lateral attachment point and rear lateral attachment point, and the rear grip strap has a first attachment coupling interface. A grip extension defined by a front extension strap and a rear extension strap is coupled to the frame at the respective one of the front lateral attachment point and the rear lateral attachment point thereof. The grip extension includes a second attachment coupling interface engaged to the first attachment coupling interface of the frame.

A thumbrest for a handgun is provided, the thumbrest having at least a thumb support and a support base. The support base may be configured for mounting to the handgun. The thumb support may be pivotably movable with respect to the support base or a lateral side of a handgun frame, pivoting between a collapsed position, wherein the thumb support may be folded up adjacent to, or in contact with, the support base or the lateral side of the handgun frame, and an extended position, wherein the thumb support may be pivoted away from the support base or the lateral side of the handgun frame. In other embodiments, a spring may be configured to bias the thumb support toward the extended position, and a stop structure may be configured to limit pivotal movement of the thumb support, such that liming pivotal movement of the thumb support defines the extended position.

A thumbrest for a handgun is provided, the thumbrest having at least a thumb support and a support base. The support base may be configured for mounting to the handgun. The thumb support may be pivotably movable with respect to the support base or a lateral side of a handgun frame, pivoting between a collapsed position, wherein the thumb support may be folded up adjacent to, or in contact with, the support base or the lateral side of the handgun frame, and an extended position, wherein the thumb support may be pivoted away from the support base or the lateral side of the handgun frame. In other embodiments, a spring may be configured to bias the thumb support toward the extended position, and a stop structure may be configured to limit pivotal movement of the thumb support, such that liming pivotal movement of the thumb support defines the extended position.

An integrated grip and rail adapter for a handgun includes two side panels having both grip sections that are adapted to form at least portions of the handgun grip and receiver sections that are adapted to extend from the grip sections along the receiver frame of the handgun beyond a trigger guard and beneath a barrel of the handgun. A mounting rail for mounting accessories beneath the barrel of the handgun is formed in the two receiver sections.

An integrated grip and rail adapter for a handgun includes two side panels having both grip sections that are adapted to form at least portions of the handgun grip and receiver sections that are adapted to extend from the grip sections along the receiver frame of the handgun beyond a trigger guard and beneath a barrel of the handgun. A mounting rail for mounting accessories beneath the barrel of the handgun is formed in the two receiver sections.

A firearm includes a barrel portion, a slide, and a frame. The frame includes a grip, and the grip includes a magazine chamber and a rear surface adjacent the slide. At least one sensor is carried by the grip, and the at least one sensor adapted to sense a state of the magazine detachably received in the magazine chamber corresponding to a number of cartridges of ammunition remaining in the magazine. A display is carried on the rear surface of the grip, and the display includes a plurality of illuminating devices. The display is operatively coupled to the at least one sensor and is operable to visually present the number of cartridges of ammunition remaining in the magazine by illuminating at least one of the plurality of illuminating devices.

A firearm includes a barrel portion, a slide, and a frame. The frame includes a grip, and the grip includes a magazine chamber and a rear surface adjacent the slide. At least one sensor is carried by the grip, and the at least one sensor adapted to sense a state of the magazine detachably received in the magazine chamber corresponding to a number of cartridges of ammunition remaining in the magazine. A display is carried on the rear surface of the grip, and the display includes a plurality of illuminating devices. The display is operatively coupled to the at least one sensor and is operable to visually present the number of cartridges of ammunition remaining in the magazine by illuminating at least one of the plurality of illuminating devices.