Does not fit 20 round mags without modification - Anarchy Outdoors HK VP9/VP 40 Magwell

I wish had had read a previous review before installing this on a VP9L. I needed to use a punch to get a 20 round mag back out. I'll be dremeling this part to make it work. Looking at how this is machined, the fit issue is poor design. The necessary cut is already part of the machining operations, just to the wrong depth at the front corners of the mag.