Ok. I’m as OCD as the next guy, but this one doesn’t bother me. In the photo below, you can see that the upper and under lug are not tight to the frame, but the main section of the barrel is. In my mind, this ensures that the barrel is as tight to the frame as possible. It also prevents scratching the frame as the barrel is torqued down. While it’s visible in the photo, it’s very difficult to see while just looking casually. That’s just my take...