Raw Aluminum 1 inch Sight rail for Nelson or Bull Barrel, new but unfinished. I received these with WGP parts way back and never really figured the proper use for them. I think the might have neen meant for WGP Ranger or Commando bodies? Not really sure. Slides onto a bull barrel or Nelson 1inch OD body but does not have a way to secure it desides the inability to rotate since the lower edge is close to the grip frame. Because of this it actually might not work on all Nelsons? See photos. Sold as is. Multiples available, one included.