Sadlak National Match Spring Guide for M1A, M14 Steel Parkerized

This National Match Spring Guide improves the consistency and smooth motion of the operating rod which helps reduce wear and increase rifle accuracy over the standard stamped GI guide. Produced to the same specifications as the military's national match rifles and enhanced by making them from one-solid piece of round 8620 tool steel with no welding to cause distortion. Each is case hardened to 40-45 HRc in an inert gas furnace to help maintain straightness and uniform hardness for long servic