The Strike Industries Ultimate Dust Cover for AR-15, .223/5.56, Flat Dark Earth (Strike Industries part number SI-AR-OMUDC-223-FDE) is the next iteration of Strike Industries’ original Ultimate Dust Cover. Strike Industries builds this version with a double injection mold and an overmolded, rubberized soft sealing lip, giving a noticeably better seal than the factory ejection port cover. That improved seal helps keep debris, dust, and water out of the action when the cover is closed, which matters for a rifle that spends time in the field or in harsh conditions. Finished in Flat Dark Earth, it is a simple, functional upgrade to a part most AR owners never think to replace.

Key Specifications

• Built specifically for .223 Remington/5.56 NATO AR-15 upper receivers.
• Uses a double injection mold construction, an upgrade over Strike Industries’ original Ultimate Dust Cover.
• Features an overmolded, rubberized soft sealing lip for a noticeably better seal than the factory cover.
• Finished in Flat Dark Earth polymer to match FDE-themed builds.

Frequently Asked Questions

How is this different from a factory dust cover? It uses a double injection mold with a rubberized soft sealing lip for a better seal against debris and water.

What caliber AR-15 does this fit? It is built for .223 Remington/5.56 NATO AR-15 upper receivers.

Buy the Strike Industries Ultimate Dust Cover

Keep debris and moisture out of your AR-15’s action with the Strike Industries Ultimate Dust Cover. Order it from our Strike Industries lineup of other AR15 accessories and parts and our Lubbock, Texas team will get it shipped out quickly.