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Introducing the Strike Industries AR Overmolded Ultimate Dust Cover for .223/5.56, which is a newer version of their previous Ultimate Dust Cover (UDC). This UDC model has been enhanced with a double injection mold and an overmolded rubberized soft sealing lip for better sealing purposes and to prevent dust and water from entering when the cover is closed. Their patent pending "True Seal", which is an internal lip, seals the port tighter than other dust cover designs.

The AR Overmolded UDC is pre-assembled with all parts required for tool-less installation and easy disassembly using a pen or small point. Additionally, an adjustable detent set screw is built into the UDC to compensate for wear on the upper receiver, and the patent pending noise-reduction rubber padding ensures that it is almost 100% silent during activation.

Made of overmolded high-strength impact resistant custom blended SI Polmer Extreme material, this dust cover does not deform or get bent out of shape. It is resistant to rust, unlike traditional steel covers, and it can be easily removed and reinstalled.

This Strike Industries AR Overmolded Ultimate Dust Cover for .223/5.56 is compatible with AR-15 Mil-Spec upper receivers and Aero Precision M4E1, but it is not compatible with Upper Receivers such as VLTOR MUR: Modular Upper Receiver and ZRO Delta, or Lantac Enhanced BCG due to carrier and bolt design.

Consider using the Strike Industries AR Overmolded Ultimate Dust Cover for .223/5.56 in a new build or when you need to untorque the barrel nut, as this is the easiest time to remove your old stamped steel dust cover to upgrade. Furthermore, any SI UDC (including this overmolded one) can be installed and removed in just 5 to 10 seconds.