Sig Sauer P320 used Compact size OEM slide with aftermarket RMR/RMS cut done to the slide. Rear sight groove was removed. This came off a used unit and is stripped. No internals RMR/RMS cut is good. Threads are good. Both were test fitted with zero issues. When I got it, it was bare metal at the cut. I covered it with black birch wood casey touch up paint to protect it. Leave it as is or Cerekote it your favorite color. Sold as is. All reasonable offers accepted.