This is an RWS 75 I purchased a few weeks ago off Gunbroker. It shoots very well and I find the rear sight very interesting. About a month before purchasing the gun I purchased a boxed set of Diana sights on eBay. It included these sights with a wrench, small (what I was told was a trigger extension with the related screw). The sight was designed for this gun as it does not squeeze on the sides of the rail but presses on the top of the serrated rail. I bid on another sight like it latter without the trigger extension and screw and it went for almost twice what I paid for mine and I did not get it. I was told the stock was fiddleback but I do not know. The grain is not as pronounced as I expected for a fiddleback.