TacFire AR-15 Takedown/Pivot Pin and Detent Spring 10-Pack

Whether you're finishing up your budget AR-15 build or looking to keep a few spare parts on hand for a rainy day, the TacFire AR-15 Pivot Pin / Detent Spring is an absolute must. Compatible with most Mil-Spec AR-15 lower receivers. Includes one brass pin and one stainless steel spring.