Do any of you have a Dunham's Sporting Goods store in your location? If so, many of you have probably already noticed in their "vintage" gun selection that there are a couple of "refurbished" G-3 (or what appears to be...) HK semi-auto rifles. Can anybody confirm that these are the real deal? If not, what are they? All of the Dunhams I have been carry several of these. Can anyone shed some light on this? Thanks!