The Wilson Combat Ejection Port Cover is built for AR-15/M16 platform rifles chambered in 5.56 NATO (Wilson Combat part no. TR-EPD556).

Key Specifications

• Built to fit AR-15/M16 platform uppers chambered in 5.56 NATO.
• Functions as the ejection port cover, closing over the port when the bolt is forward.
• Sold as a single standalone component rather than bundled into a broader upper-parts kit.
• Classified as a firearm part/accessory, not a regulated firearm itself — no FFL transfer required to purchase.

Frequently Asked Questions

What does the ejection port cover do? It closes over the ejection port when the bolt is forward, helping keep dirt and debris out of the action between uses.

Does this fit a standard AR-15 upper? Yes, it’s built to fit AR-15/M16 pattern uppers chambered in 5.56 NATO.

Is gunsmithing required to install it? No special gunsmithing is required — it’s designed as a drop-in replacement for the factory ejection port cover.

Buy the Wilson Combat AR-15/M16 Ejection Port Cover, 5.56 NATO

Order the Wilson Combat AR-15/M16 Ejection Port Cover, 5.56 NATO from a Lubbock, TX gun shop. Browse more Wilson Combat parts in our Rifle Parts category.