The first step.... BEFORE you bend / straighten anything!! Is to purchase, and learn how to use, a digital caliper.... you then measure across the receiver at the bottom front, and then measure across the rails at the bottom rear, and also all along the way, (toggle in or out, still have to arrive at straight sometime!) ... whatever the front is, that's what the back is supposed to be... it was machined straight in the beginning, and should be that now... Then measure the receiving slots in the frame..same thing, should be straight, front, back, middle..... you'll be surprised what it'll do for your Luger knowledge base.... Can't manage, or repair what you can't measure! best to all, til....lat'r......GT
