Takes out the play between upper and lower AR-15 receivers: provides a rock-solid lockup for more consistent accuracy and improved trigger pull. Thread-adjustable, all stainless steel pin installs quickly, replaces the push pin and will not alter or enlarge existing hole dimensions.
SPECS:
Stainless steel. AR-15 - .250" (6.3mm) nominal diameter. Fits receivers with .250" diameter receiver takedown pin holes. AR-10/SR-25 - Pin diameter .274" to .276" on pin ends.
Catalog page 29