Noveske AR-15 Dust Cover Features The Noveske AR-15 Dust Cover fits standard Mil-spec AR-15 upper receivers keeping fit and function identical to a factory ejection port cover while adding a distinct Noveske touch. The outfacing side carries a 6mm ARC engraving so the dust cover doubles as a quick visual identifier of the rifle s chambering on the range or in a safe full of similar uppers. Finished in Black it matches standard Mil-spec hardware and blends in with most upper receiver finishes. For a 6mm ARC build swapping in a marked cover is a small but meaningful way to personalize an otherwise plain upper. The kit includes everything needed for installation: the port door itself the rod the spring and the retaining clip so there is no need to source hardware separately. Because it is sized for Mil-spec receivers the swap is a straightforward drop-in on nearly any standard AR-15 upper. Keeping the ejection port covered when the bolt is closed helps keep dirt and debris out of the action between uses. The Noveske AR-15 Dust Cover is available for sale at GrabAGun for 6mm ARC shooters looking for a simple engraved upgrade over a bare generic cover. Noveske AR-15 Dust Cover Specifications Manufacturer: Noveske Model: AR-15 Dust Cover Color: Black Description: Ejection Port Cover Kit Includes Dust Cover Rod Spring and Clip Compatible Hosts: Mil-spec AR-15 Upper Receivers Available At: GrabAGun