An adjustable shoulder rest for a rear stock for a rifle or shotgun, with slidable adjustment features at the butt plate to customize the shoulder to firearm interface, providing diverse adjustment options pursuant to user preference and/or circumstances of use. The present invention further provides a pivotal, slidably-adjustable shoulder rest to facilitate customized position adjustment to the firearms orientation vis-a-vis the operator, including the option to provide a swivel connection for adjustment of the firearm during operation, even allowing the user to employ various diverse sights mounted to the firearm for user selection via pivoting the firearm, while maintaining undisturbed engagement of the shoulder rest to the shoulder of the user.

An adjustable shoulder rest for a rear stock for a rifle or shotgun, with slidable adjustment features at the butt plate to customize the shoulder to firearm interface, providing diverse adjustment options pursuant to user preference and/or circumstances of use. The present invention further provides a pivotal, slidably-adjustable shoulder rest to facilitate customized position adjustment to the firearms orientation vis-a-vis the operator, including the option to provide a swivel connection for adjustment of the firearm during operation, even allowing the user to employ various diverse sights mounted to the firearm for user selection via pivoting the firearm, while maintaining undisturbed engagement of the shoulder rest to the shoulder of the user.

A collapsible reflective optical sight for a firearm includes a base that mounts the optical sight to the firearm, a lens attached to and rotatable with respect to the base, wherein the lens includes a first optic with a reflective surface and the lens is folded with respect to the base for storage in a collapsed configuration and is angled with respect to the base in a deployed configuration for use in aiming the firearm, a light source on the base that reflects light off the reflective surface of the first optic to a user for use in aiming the firearm, a mechanical sight on the base for use in aiming the firearm when the lens is in the collapsed configuration, and a self-contained locking mechanism to mount the collapsible reflective optical sight to the firearm.

A collapsible reflective optical sight for a firearm includes a base that mounts the optical sight to the firearm, a lens attached to and rotatable with respect to the base, wherein the lens includes a first optic with a reflective surface and the lens is folded with respect to the base for storage in a collapsed configuration and is angled with respect to the base in a deployed configuration for use in aiming the firearm, a light source on the base that reflects light off the reflective surface of the first optic to a user for use in aiming the firearm, a mechanical sight on the base for use in aiming the firearm when the lens is in the collapsed configuration, and a self-contained locking mechanism to mount the collapsible reflective optical sight to the firearm.

A pistol, incudes a slide; a lens attached to and rotatable with respect to the slide; a light source that reflects a light off a reflective surface of the lens to aim the pistol; a hood rotatably mounted and in contact with the lens, wherein the hood folds over the lens in a collapsed configuration and is angled from the lens in a deployed configuration, and the lens, the light source, and the hood fit within an outline profile of the slide in the collapsed configuration.

A pistol, incudes a slide; a lens attached to and rotatable with respect to the slide; a light source that reflects a light off a reflective surface of the lens to aim the pistol; a hood rotatably mounted and in contact with the lens, wherein the hood folds over the lens in a collapsed configuration and is angled from the lens in a deployed configuration, and the lens, the light source, and the hood fit within an outline profile of the slide in the collapsed configuration.

An elevation adjustment sight assembly, comprising a windage carrier, a lift dial, and a lift spring. The windage carrier is specially structured to fit within a housing. The lift dial and the lift spring are specially structured to fit within the windage carrier and are movable in relation to the windage carrier to thereby adjust the height of a sight held by the housing.

Implementations of an optical sight mounting system are provided. An example optical sight mounting system comprises an optical sight having a base that can be secured to a pistol slide having an adapter interface. The base of the optical sight is configured so that it can be rotated into position within the adapter interface. In this way, the optical sight can be mounted on a pistol and used to aim. Another example optical sight mounting system comprises an optical sight having a base that can be secured to an adapter interface of an optical sight mount. The base of the optical sight is configured so that it can be rotated into position within the adapter interface. The optical sight mount is configured to releasable engage a mounting interface of a firearm (e.g., a MIL-STD-1913 rail). In this way, the optical sight can be positioned on a firearm (e.g., a rifle) and used to aim.

Implementations of an optical sight mounting system are provided. An example optical sight mounting system comprises an optical sight having a base that can be secured to a pistol slide having an adapter interface. The base of the optical sight is configured so that it can be rotated into position within the adapter interface. In this way, the optical sight can be mounted on a pistol and used to aim. Another example optical sight mounting system comprises an optical sight having a base that can be secured to an adapter interface of an optical sight mount. The base of the optical sight is configured so that it can be rotated into position within the adapter interface. The optical sight mount is configured to releasable engage a mounting interface of a firearm (e.g., a MIL-STD-1913 rail). In this way, the optical sight can be positioned on a firearm (e.g., a rifle) and used to aim.

A rear firearm sight having an adjustable peep and a front firearm sight having a vertically adjustable protrusion are provided. The rear sight includes a rear post and a rear base. The rear post includes an aperture and a peep having a plurality of peep holes and a plurality of positions where each position aligns a different peep hole with the aperture. The front sight includes a front post and a front base. The front post includes a protrusion having a screw portion and a wheel mechanism. The wheel mechanism is configured to adjust the height of the protrusion by actuating the screw portion. The wheel mechanism includes a plurality of indents and a plunger configured to fit within each of the plurality of indents.