The Strike Industries pin kit is a valuable addition to your spare/replacement parts inventory. This kit is comprised of several important lower pins and detents. The kit contains takedown and pivot pins, takedown and pivot pin detents, hammer and trigger pins, selector detents, trigger guard roll pins, bolt catch roll pins and bolt catch plungers. If you're looking to assemble some stripped lower receivers or to replace worn out pins and detents, get your pin kit today!