I recently purchased a new stainless steel barrel for my Sig P239. When attempting to install it, the top portion of the barrel hood that fits into the slot breach face is too wide. It only needs to be taken down just a bit on each side of the barrel. What is the best way to do this? I have almost $200.00 in the new barrel, and I don't want to butcher-it up. I have basic tools (dremmel etc...). A professional gunsmith would be great, but there aren't any around here, and after Christmas, money is tight. Any helpful input is appreciated. Stay safe.