Strike Industries Lower Receiver Pro Pin Kit - 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 20 takedown, 20 pivot pins, 40 takedown/pivot pin detents, 40 hammer/trigger pins, 20 safety detents, 20 buffer retainer pins and 20 bolt catch roll pins. Includes 20 Takedown Pins; 20 Pivot Pins; 40 Takedown/Pivot Pin Detents; 40 Hammer/Trigger Pins; 20 Safety Detents; 20 Buffer Retainer Pins; 20 Bolt Catch Roll pins;