Ejection Port Cover Assembly for AR-15

This Ejection Port Cover Assembly for AR-15, sold as the Sons of Liberty Gun Works Port Door Cover Kit (brand part no. PORTDOORCOVERKIT), is a complete dust cover replacement for a standard AR-15 upper receiver. The ejection port cover, also called the dust cover, closes over the ejection port to keep debris out of the action when the rifle isn’t being fired, and springs open automatically when the bolt cycles. This kit includes the full cover assembly and its hinge hardware for a complete replacement.

Key Specifications

• Functions as the ejection port cover (dust cover) that keeps debris out of the action when closed.
• Sold as a complete Port Door Cover Kit, including the cover and its hinge hardware.
• Classified as a Cover-type component for standard AR-15 upper receivers.
• Manufactured by Sons of Liberty Gun Works, an AR-15 parts and rifle maker.

Frequently Asked Questions

What does the ejection port cover do? It closes over the ejection port to keep debris out of the action, and springs open automatically when the bolt cycles.

Does this kit include the hinge hardware? Yes, it’s sold as a complete Port Door Cover Kit with the cover and hinge hardware included.

Buy the Ejection Port Cover Assembly for AR-15

Replace a damaged or missing dust cover with this complete Sons of Liberty Gun Works Port Door Cover Kit. It ships fast from our Lubbock, Texas gun shop, and our AR dust covers selection has more upper receiver parts.