Definitely NOT Vortex. Most Durable scope for not super money is easily the SWFA fixed 10X or one of the other fixed powers. These were originally designed for the US Navy and their simplicity makes them super durable. the S&B, Kahles or US optics fixed 10x are even more durable especially the USO but cost significantly more.
Your line-up of suggestions is very impressive, but don't you think a 10x scope is a bit much for a 7.62x39 bush/quad rifle?





















































