After two range trips, and approximately 50 low-mid level Rowland loads and 150 .45 acp SWC target level loads I notice that my frame is getting a little beat up in front of the front frame rails. There are a few threads on this here mostly about G20's and G29's, and some posters are concerned and others are not. I have never seen this on any of my other Glocks, and the actual low round count with this showing up concerns me. I do have the "official .460 Rowland Kit". My loads are low to mid level as I said, and I can see no signs of wear at all with the same loads in the 460 kit in my G30. Finally to the questions, Any one else having this problem? Any fixes? What weight recoil spring comes with the G21 kit,(Rowland is not answering my email and it is not listed in the kit specs)? I appreciate any thoughts you might have on this topic.