customizing custom add-on

If you're like me this is one of those "finally!" products. Just thought I'd share my findings and hopefully save someone the frustration I had in my search for a descent red dot sight holster. I ordered mine over the weekend, so I haven't got it in yet, but will post again once I get to try it...

Is there any other gun "type" or "brand" out there that is more tinkered-with, or customized, than Glocks? I have owned many guns. I have read through many forums, etc. But now that I own a Glock and am reading through this (and other) forum, it seems clear to me that Glock owners tinker with...