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The AR Overmolded Ultimate Dust Cover for .223/5.56 offered by Strike Industries represents the latest version of their Ultimate Dust Cover (UDC). This design features a double injection mold and an overmolded rubberized soft sealing lip, which significantly improves its ability to keep debris and water out. Additionally, the SI patented "True Seal" internal lip seals the port tighter than traditional dust covers. For easy installation, the AR Overmolded UDC comes pre-assembled with a pen or small point substitute for easy disassembly and an adjustable detent set screw to compensate for wear on the upper receiver. Furthermore, the SI patented noise-reduction rubber padding ensures that the cover is almost 100% silent during activation. Made of overmolded high-strength impact-resistant custom blended SI Polmer Extreme material, the SI AR Overmolded UDC does not deform or get bent out of shape. Additionally, it is resistant to rust, making it an easy choice for cost-effective replacement. Consider using the Strike Industries AR Overmolded Ultimate Dust Cover for .223/5.56 for new builds or when untorqueing the barrel nut as it is the easiest time to remove the old stamped steel dust cover and upgrade. Furthermore, the installation and removal of any SI UDC can be done in just 5 to 10 seconds.

Compatibility:

- AR-15 Mil-Spec upper receivers
- Aero Precision M4E1

Not compatible with:

- VLTOR MUR: Modular Upper Receiver and ZRO Delta upper receivers.
- Lantac Enhanced BCG due to carrier and bolt design.