In some embodiments, an apparatus comprises a first body and a second body aligned upon an axis. The first body comprises a first sight window and a first side edge, a second side edge and a base edge defining the first sight window. The second body comprises a second sight window and a first side edge, a second side edge and a base edge defining the second sight window. The axis extends through a center of the first sight window and through a center of the second sight window.

A foldable sight implementable on a firearm includes a base, a hinge and a sight body. The base is configured to be mounted on a portion of the firearm. The sight body is pivotably attached to the base by the hinge and contains a position holding device therein. The position holding device is configured to hold the sight body at either a first position or a second position responsive to the sight body being rotated from one of the first and second positions to another of the first and second positions.

A foldable sight implementable on a firearm includes a base, a hinge and a sight body. The base is configured to be mounted on a portion of the firearm. The sight body is pivotably attached to the base by the hinge and contains a position holding device therein. The position holding device is configured to hold the sight body at either a first position or a second position responsive to the sight body being rotated from one of the first and second positions to another of the first and second positions.

A sighting system for a firearm and related methods are disclosed. The sighting system has front and rear flip-up sights, wherein the front sight comprises a flip-up portion having an aperture through which a sight post can partially extend; a knob comprising one or more notches on a first side and the sight post extending from a second side; at least one detent arranged to face and interact with the one or more notches. The knob is configured to rotate about a first axis, where the rotation causes the sight post to move in a first direction along the first axis; tilting of the knob in a second direction based on the detent interfacing with the notches; and tilting of the sight post in the second direction, thereby forcing at least a portion of the sight post to press against the aperture, or a combination thereof.

A sighting system for a firearm and related methods are disclosed. The sighting system has front and rear flip-up sights, wherein the front sight comprises a flip-up portion having an aperture through which a sight post can partially extend; a knob comprising one or more notches on a first side and the sight post extending from a second side; at least one detent arranged to face and interact with the one or more notches. The knob is configured to rotate about a first axis, where the rotation causes the sight post to move in a first direction along the first axis; tilting of the knob in a second direction based on the detent interfacing with the notches; and tilting of the sight post in the second direction, thereby forcing at least a portion of the sight post to press against the aperture, or a combination thereof.

An angle adjustment mechanism includes a hollow cylindrical fine adjustment seat (1), a hollow cavity of the fine adjustment seat (1) are provided with a tapered fine adjustment screw (3) and a mounting seat (2) having a tapered surface (201), the tapered fine adjustment screw (3) and the mounting seat (2) are opposed to each other along the axial direction, the tapered surface (201) of the mounting seat (2) is provided with four strip-shaped planes (202) evenly spaced in the circumferential direction, two adjacent strip-shaped planes (202) are overlapped with the tapered surfaces of two tapered fine adjustment screws (3) respectively, the tapered fine adjustment screw (3) can move forward or backward in a cavity formed by an inner wall of the fine adjustment seat (1) and the tapered surface (201) of the mounting seat (2) along a strip-shaped plane (202) that coincides with the tapered fine adjustment screw (3).

An angle adjustment mechanism includes a hollow cylindrical fine adjustment seat (1), a hollow cavity of the fine adjustment seat (1) are provided with a tapered fine adjustment screw (3) and a mounting seat (2) having a tapered surface (201), the tapered fine adjustment screw (3) and the mounting seat (2) are opposed to each other along the axial direction, the tapered surface (201) of the mounting seat (2) is provided with four strip-shaped planes (202) evenly spaced in the circumferential direction, two adjacent strip-shaped planes (202) are overlapped with the tapered surfaces of two tapered fine adjustment screws (3) respectively, the tapered fine adjustment screw (3) can move forward or backward in a cavity formed by an inner wall of the fine adjustment seat (1) and the tapered surface (201) of the mounting seat (2) along a strip-shaped plane (202) that coincides with the tapered fine adjustment screw (3).

A novel and improved rotating stock butt and rotating sight apparatus that applies to a shoulder fired firearm where the firing mechanism and the sight apparatus is elevated above the stock butt when in a horizontal shooting position. This system comprises a cooperation between the rotating stock butt and the rotating sight apparatus that allows the firing mechanism and the barrel of the firearm to be off set to either the right or to the left of the stock butt while the sight of the rotating sight apparatus can be rotated and secured at the top center of the firearm barrel, allowing the shooter minimal head movement in the gun mount.

A reflective sight for use with a firearm includes a rear sight including a light source; and a front sight including a reflective surface directly opposing the light source, where light emitted from the light source is reflected by the reflective surface toward the rear sight. The rear sight can include a plurality of light sources and at least two of the plurality of light sources emit different colors of light.

An alignment mechanism has a base with a front right quadrant, a front left quadrant, a rear right quadrant, and a rear left quadrant. The base further defines a yaw axis and a pitch axis. A ball and socket linkage is located on the base at either the front right quadrant or front left quadrant at the intersection of the yaw axis and the pitch axis. A pressure plate assembly is also on the bottom surface of the base at the other of the front right quadrant and front left quadrant. A spring is in contact with one of the rear right quadrant and rear left quadrant and kitty-corner with the ball and socket linkage, with a yaw alignment surface on the other of the rear right quadrant and rear left quadrant. A pitch alignment surface is also on one of the rear right quadrant and rear left quadrant.