The dust cover is kind of light for holding a scope. At the gun show I bought a solid steel replacement for the dustcover that has a rail built into it. The two feet sticking out forward were delibertly made a little too long. A few swipes of a file makes it a perfect tight fit. The scope sits a little higher than I like, but it works well.
I have two of these. One has a red dot sight, one a 4 x scope. I have done only a limited sight in. So far, they seem to work. I expect to shoot them at 300 yards next weekend, and the Swiss Rifle Club, so will know for sure after that if they are solid enough.