As described, looks great. - Yankee Hill Machine AR Rifles 9MM Dust Cover w/ Dust Cover, Rod, and Retaining Clip Spring

Installed without issue on an Aero Precision XL upper, works great. I like having these caliber specific port doors to keep my uppers straight because I set them all up the same way. The c-clip is pre-installed so no fussing with that little thing. This has the laser engraving on the outside only if that matters to you.