I just received my VP9 back from Mark at L & M Precision Gun Works yesterday. I bought my Trijicon RMR from Amazon.com and sent both the slide and the sight to Mark about a month ago. He milled the slide, applied Flat Dark Earth Cerakote to match the sight and mounted the sight. I'm using the original sights to co-witness in an emergency. Mark is super easy to work with via email and his prices are very reasonable.