Ar-15/M16 Receiver Shims - Upper/Lower Receiver Shims

Tempered stainless steel shims reduce play between receiver halves and hammer/trigger components for a tighter, smoother-functioning rifle. Helps restore accuracy and reduce noise in older rifles. Upper/Lower shims fit on the pivot pin to reduce side-to-side play between the upper and lower receiver. Mfg: Power Custom SPECS: Stainless steel, heat-hardened. Pak of 10.