A co-worker of mine has been looking at Glock pistols,he has shot one that belongs to a friend and had decided on a model 30 (45acp). A local gun dealer told him to look at the Springfield XD said it was basicaly a "tricked out Gock" I have pretty much zero knowlege of either gun so I thought I would see if anyone else could offer any advice. All I could tell him was to handle each gun to see how it feels I cant imagine springfield or Glock building a bad gun. I think the cheaper price and olive drab color(Glock aparenly does not ofer in 45) have sold him on the XD. I have sent him to "davidsons" gallery of guns online because of their lifetime warrenty. But they do not have the glock in stock.