Colt AR15 Ejection Port Cover Hinge Pin

Colt AR-15 Ejection Port Cover Hinge Pin SP61658

Factory Colt SP61658 Ejection Port Cover Hinge Pin. This pin secures the ejection port (dust) cover to the upper receiver on Colt AR-15, M16, and M4 platforms.

It serves as the hinge pivot for the cover, allowing it to open and close properly while remaining retained on the upper. Essential small part for builds, repairs, or replacement of a worn or missing hinge pin. Sold individually.