Is my NEW GUN SAFE TO SHOOT??? LOOSE SCREW ON BOLT CARRIER, IS THAT SAFE ??? HAD MY NEW GUN OVER A MONTH NOW STILL CANT GET AN ANSWER ON IF THIS GUN IS SAFE... emailed Springfield 2 times and call and left a message, no response so I called and talked with a human being and Still could NOT GET AN ANSWER IF MY BRAND NEW GUN IS SAFE TO SHOOT. PROBLEM - if you look through the ejection port dust cover you will see 4 holes ONE of these holes has a Screw in it. This screw is NOT ON THE PARTS DIAGRAM AND IT IS ALSO LOOSE, I CAN MOVE IT WITH MY FINGER NAIL. SHOULD THIS SCREW BE TIGHT?? AND IF SO HOW MANY OTHET SCREWS ARE LOOSE INSIDE THIS GUN??? IT IT SAFE???