Enhance your firearm's performance with the Strike Industries Aluminum Ultimate Dust Cover in a striking red finish designed specifically for 223 Remington/5.56 NATO rifles. This innovative dust cover features a quick detach mechanism allowing for swift installation or removal in under 10 seconds. Its adjustable detent set screw compensates for receiver wear giving you control over the opening power. Built with heavy-duty machined billet aluminum it ensures durability while the patent-pending noise-reduction padding provides nearly silent operation. Please note it's not compatible with Aero Precision M4E1 upper receivers and Lantac EBCG. The package includes the dust cover and four rubber pads for added customization.