I'll be getting my Scar 17 soon and I'm not too sure if I like he factory "ugg boot" stock it comes with stock. I've seen VLTOE makes a receiver extension, does anyone run them? If so could you post some pics please? I've always been an AR guy but I've alwasys loved a Scars, so I finally decided to pull the trigger on one. So any help would be greatly appreciated!!