Strike Industries AR-OMUDC Ultimate Dust Cover .223/5.56 Black Polymer for AR-15

The Strike Industries AR-OMUDC Ultimate Dust Cover is an upgraded, overmolded ejection-port cover built for the AR-15, M4, and M16 family of rifles chambered in .223/5.56. It replaces the standard factory dust cover with a more robust overmolded design that seals the upper-receiver action against the elements.

Constructed from a high-quality black polymer, the AR-OMUDC uses Strike Industries' signature double-injection overmold process to bond a rubberized soft sealing lip directly into the cover body. That integrated seal presses against the upper receiver and helps keep out dirt, debris, moisture, and water that would otherwise find their way through the open ejection port when the rifle is running without a loaded round.

The AR-OMUDC installs in seconds without tools and can be removed just as quickly using a common cartridge case as a lever, so there is no need to pull the barrel nut or break down the rifle for routine service. Whether you run a duty carbine, a competition AR, or a defensive rifle, the Ultimate Dust Cover delivers a tighter seal, easier handling, and a clean factory-style appearance in matte black.