Yankee Hill Machine YHM-111-556 AR-15 Dust Cover Assembly 5.56 NATO Caliber Marked

The Yankee Hill Machine YHM-111-556 is a caliber-marked dust cover assembly for the AR-15 platform, factory-stamped "5.56 NATO" to give a 5.56-chambered upper a clean, factory-correct look at the ejection port. It installs in place of a standard dust cover and is compatible with any standard-pattern AR-15 upper receiver, making it a quick, drop-in upgrade for builders who want caliber markings to match the chambering of their rifle.

The cover itself is machined from aluminum and finished in a Mil-Spec hard anodized matte black for corrosion resistance and long service life under hard use. Each assembly ships complete with the dust cover, rod, retaining clip, and spring - everything required to swap it into an existing upper right out of the package. Proudly Made in the USA by Yankee Hill Machine, the YHM-111-556 is a simple, cost-effective way to keep an AR-15's ejection port marked to match its caliber.