Alignment device for mounting optical sight

Abstract

The invention comprises a ring alignment bar, a mount extension rod, a bore rod, a lower connector block, a vertical connector rod, an upper connector block, and a bore extension rod. The ring alignment bar is installed in the rings of a telescopic sight mount on a firearm to bring the rings into concentric alignment with each other. The mount extension rod indicates lateral alignment between the rings and barrel of the firearm. The bore rod fits into the muzzle of the firearm. The upper and lower connector blocks, vertical connector rod, and bore extension rod fit together to indicate alignment in a vertical plane between the rings and the bore of the firearm.

1 . An alignment device for mounting optical sights comprising a ring alignment bar, a mount extension rod, and a bore extension assembly. 
     
     
         2 . A ring alignment bar comprising a plurality of diameters, said diameters corresponding to standard outside diameters of, optical sights, and said bar comprising a hole of predetermined diameter at one or both ends. 
     
     
         3 - 7 . (canceled) 
     
     
         8 . A bore extension assembly comprising a bore rod, a lower connector block, an upper connector block, a vertical connector rod, and a bore extension rod. 
     
     
         9 . The mount extension rod of  claim 1 , of predetermined diameter to enter said hole or holes in said alignment bar, providing a means for the mount extension rod to extend along and above the barrel of a firearm, so as to reveal alignment or misalignment between said mounts and the barrel of said firearm. 
     
     
         10 . The bore rod of  claim 8 , of predetermined diameter to fit into the muzzle of a firearm. 
     
     
         11 . The lower connector block of  claim 8 , comprising a rectangular block, and a hole of predetermined diameter into which said bore rod may fit, said block also comprising a vertical connector rod attached to said connector block at an angle perpendicular to the axis of said hole in said connector block. 
     
     
         12 . The upper connector block of  claim 8 , comprising a first hole of predetermined diameter into which may fit said vertical connector rod, said upper connector block also comprising a second hole of predetermined diameter with the axis of said second bole perpendicular to the axis of said first hole. 
     
     
         13 . The bore extension rod of  claim 8 , of predetermined diameter, said bore extension rod fitting into said first or second holes in said upper connector block, providing a means for said scope rings to be aligned in a vertical plane with said barrel of said firearm by sliding said bore extension rod up or down for comparison with said mount extension rod.