Measuring Rifle Rear Sight Height
This video segment shows you how to measure your rifle for the correct rear sight height. PDF instructions also available.
WARNING: Never attempt to disassemble or reassemble a firearm unless you are absolutely certain that it is empty and unloaded. Visually inspect the chamber, the magazine and firing mechanism to be absolutely certain that no ammunition remains in the firearm. Disassembly and reassembly should follow the manufacturer’s instructions.