SGW complete upper XM177

Up for sale is a pre-ban SGW complete AR upper in the XM177 style. I bought this in the late 1980's and shot it a couple of times. It has just been sitting for the last 30 plus years. It has an 11 1/4" barrel with a permanently attached flash hider. It has a Colt bolt carrier. I am not sure what happened to the finish over the years as it was all a nice uniform grey when I bought it. It now has that cool worn, been-there done-that look for some reason. It has light rust near the rear sight assembly, forward assist, and ejection port. The spring for the ejection port cover needs to be installed correctly for door to swing open. I am asking $499.00 for this. This must be picked up in Nampa. Send e-mail or text: 510-43two-977one.