I had one of these, but have to say its simply too clean. Always felt like something was not quite right with it. By that I mean there's quite a lot of ruggedness lost in this, which you have when you go with a prop build.
The build also misses the Hengstler counter, or cylinders. There are a few nice details lost which you get with the likes of a real telescope (such as the embossed number on the side, the fact that you can actually look down the scope). The display case is nice, and would love one for my deactivated blaster.
I find it perplexing when I see guys in the UK selling these at £300+ when they could very easily and not for too much more buy the real deactivated gun itself. Theres a lot of fun to be had in sourcing the parts and building it from that point.
Another casing point is that if I recall correctly I would say it felt heavier too.