Unobtrusive rear sight

Abstract

An unobtrusive rear gun sight includes a fixed base for rigid attachment to a gun, and a fixed elongated stem which has a sight aperture integrated at the end farthest away from the base. The elongate stem slides in a groove or path located within the fixed base. A cam device, having a manually rotatable member, is mounted on the fixed base for retaining and driving the elongated stem along a fixed longitudinal path so as to allow a shooter to sight his weapon. The base and stem are robustly built so as to survive a drop onto a hard surface.

1 . An adjustable rear sight comprising:
 a: a site base for rigid attachment to a firearm, and   b: a means to removably secure said site base to said firearm, and   c: a rear sight unit comprising a sight element with a means to move said rear sight element into operable position in a line of sight for aiming the firearm, and   d: said sight element is in a fixed, upright position with a support flange which prevents the sight element from moving except as provided by said means to move said rear sight element into operable position, and   e: said sight element is made with high strength alloys   Whereby all components of said adjustable rear sight are machined from high strength alloys so that the devices profile might be diminished but retain sufficient structural strength to survive field use on a modern firearm, further the thin profile of said adjustable rear sight unit minimally obstructs the user's view of an electronic optic.   
   
   
       2 . The adjustable rear sight of  claim 1 , wherein said support flange prevents fore, aft, and all lateral movement, which is not resulting from the adjustment means provided, by placing a section of said rear site unit into said base to prevent fore and aft movement, and using the cross section or t section of said rear site element to prevent lateral movement. 
   
   
       3 . The adjustable rear sight of  claim 1 , wherein the attaching means for securing said rear site base is a 1913 Picatinny fitting. 
   
   
       4 . The adjustable rear sight of  claim 1 , wherein said sight element has a single circular aperture. 
   
   
       5 . The adjustable rear sight of  claim 1 , wherein said rear sight element comprises a windage adjustment system which utilizes a cam device having a manually rotatable member mounted on said site base for retaining releasably said sight element in a given longitudinal path. 
   
   
       6 . The adjustable rear sight of  claim 4 , wherein said rear sight element travels in a straight path that runs transverse to the bore line of the host firearm. 
   
   
       7 . The adjustable rear sight of  claim 4 , wherein said windage adjustment system of the rear sight element comprises a threaded shaft adapted to rotate, to push, or pull said sight element along the allotted path. 
   
   
       8 . The adjustable rear sight of  claim 1 , wherein said sight element is machined from a durable steel alloy. 
   
   
       9 . The adjustable rear sight of  claim 5 , wherein said sight element is heat treated to increase the hardness of the durable steel alloy. 
   
   
       10 . A method of adjusting the rear sight of  claim 1 , comprising:
 a: rotating manually said cam member about the fixed axis to move forcibly said sight element through a reciprocative path of travel; and   b: terminating the manual rotation when said sight element is disposed at the adjusted position.