Manufacturers AR15 / M16 AR15 AR15 Parts List Lock Release Lever & Lock Nut Pin, New (DPMS/Panther Arms)
Lock Release Lever & Lock Nut Pin, New (DPMS/Panther Arms)

This part is found in the following schematics

Lock Release Lever & Lock Nut Pin, New (DPMS/Panther Arms)

This part is found in the following schematics