Always keep some spare detent pins on hand for replacement parts or for backup during your next rifle build with the CMMG AR-15 Detent and Pivot/Takedown Pins – 10 Pack. These pins are handy to have just in case one goes flying or you need to make a repair at the range. Compatible with mil-spec pivot/takedown pins. Backed by CMMG’s Lifetime Guarantee. Pack of 10.