Yankee Hill Machine YHM-111-9 Dust Cover Assembly AR-15 Caliber Marked 9mm

The Yankee Hill Machine YHM-111-9 is a caliber-marked dust cover assembly designed to fit standard AR-15 upper receivers chambered in 9mm Luger. Stamping the dust cover with the chambered caliber is a simple but useful touch for 9mm AR builds - it lets the shooter and anyone handling the rifle know at a glance what the upper is set up for.

YHM machines the dust cover from lightweight, durable aluminum and finishes it in a Mil-Spec hard anodized black for corrosion resistance and long service life under hard use. The assembly ships complete and ready to install with the dust cover itself, the hinge rod, retaining clip, and the torsion spring, so you do not need to source separate hardware to swap covers or build out a new 9mm AR upper.

The YHM-111-9 drops into standard AR-15 upper receiver cuts in just a few minutes with no permanent modification required, making it a straightforward, high-quality replacement or upgrade part Made in USA by Yankee Hill Machine.