An auxiliary optical system is installed on a telescopic sight of a gun, the telescope sight including an eyepiece end, an objective end and a first reticle. The system includes a digital imaging member fixed at the objective end by a first fixing member and partially shielding an objective lens, a display member fixed at the eyepiece end by a second fixing member and electrically connected to the digital imaging member; the digital imaging member configured to perform photosensitive image on environmental images and convert the environmental images into video signals, and generates a second reticle that is adjustable and has the same function as the first reticle, the second reticle and the video signals stacked together to be transmitted to the display member for display. The present disclosure enables the gun to have functions of the digital sight without replacing a conventional telescopic sight.

A method for assisting a firearm user with a vision condition includes: (a) fitting a housing on the firearm, the housing at least partially enclosing an aiming indicia including (1) a rear sight having two spaced apart sight elements defining a rear sight gap and (2) a front sight configured to be aligned with the rear sight gap, wherein the rear sight sight elements and the front sight each include a transparent optical lens disposed on a rear side, and wherein each optical lens has a positive optical power configured to provide substantially clear vision of the aiming indicia when viewed through the optical lens; and (b) assisting the firearm user with a vision condition by aiming the firearm at a target to bring into focus the rear sight and the front sight at the rear sight gap.

A method for assisting a firearm user with a vision condition includes: (a) fitting a housing on the firearm, the housing at least partially enclosing an aiming indicia including (1) a rear sight having two spaced apart sight elements defining a rear sight gap and (2) a front sight configured to be aligned with the rear sight gap, wherein the rear sight sight elements and the front sight each include a transparent optical lens disposed on a rear side, and wherein each optical lens has a positive optical power configured to provide substantially clear vision of the aiming indicia when viewed through the optical lens; and (b) assisting the firearm user with a vision condition by aiming the firearm at a target to bring into focus the rear sight and the front sight at the rear sight gap.

A sight mountable or mounted on a device including a rear sight and a front sight each having a sight aiming indicia useful in aiming the device.

A sight mountable or mounted on a device including a rear sight and a front sight each having a sight aiming indicia useful in aiming the device.

A rifle scope alignment apparatus having a light source that shines through a void space and through a rifle scope. The rifle scope alignment apparatus has two stepped wedges that engage the front end of a rifle scope and has a flat top v-groove to engage a rifle barrel. The light source illuminates the crosshairs of the rifle scope which casts a shadow of the crosshairs onto an elevated diamond-shaped target having a rounded hole and a vertical line and horizontal line.

A rifle scope alignment apparatus having a light source that shines through a void space and through a rifle scope. The rifle scope alignment apparatus has two stepped wedges that engage the front end of a rifle scope and has a flat top v-groove to engage a rifle barrel. The light source illuminates the crosshairs of the rifle scope which casts a shadow of the crosshairs onto an elevated diamond-shaped target having a rounded hole and a vertical line and horizontal line.

The present invention is related to an Assault Rifle Conversion Kit, which is characterized by being an alternative for modernization, updating and tactical adaptation to existing and new assault rifles through adjustments that involve minor changes in the weapon and that provide a tactical character for its use in special operations and of great demand. The present conversion kit mainly comprises six selected sets of stock set, tactical grip set, second grip set, cover set, reload handle set and forearm set which can be attached to different types of assault rifles, due to the versatility of adaptation they have.

The present invention is related to an Assault Rifle Conversion Kit, which is characterized by being an alternative for modernization, updating and tactical adaptation to existing and new assault rifles through adjustments that involve minor changes in the weapon and that provide a tactical character for its use in special operations and of great demand. The present conversion kit mainly comprises six selected sets of stock set, tactical grip set, second grip set, cover set, reload handle set and forearm set which can be attached to different types of assault rifles, due to the versatility of adaptation they have.

A rifle scope alignment apparatus having a light source that shines through a void space and through a rifle scope. The rifle scope alignment apparatus has two stepped wedges that engage the front end of a rifle scope and has a flat top v-groove to engage a rifle barrel. The light source illuminates the crosshairs of the rifle scope which casts a shadow of the crosshairs onto an elevated diamond-shaped target having a rounded hole and a vertical line and horizontal line.