AC-Unity AC AR15 M4 Ejection Port Cover Assembly is originally developed for the AC-SMG carbine. Made from the same advanced polymer used in AC Unity magazines. Unlike stamped steel dust covers, they are made of durable and lightweight polymer which makes it resistant to rust.
This advanced polymer that is used in AC Unity magazines is highly impact resistant over a wide range of temperatures.
Install literally seconds by just pushing it into place. If the time ever comes knowing that you can remove and quickly reinstall makes this an easy cost-effective choice.
Available in different colours black, OD green and coyote tan and others.