Lots of features for the price - NcSTAR MARK III Gen3 Tactical 3-9x40 Rifle Scope

Works great. Lots of features for the price. I'm leaving a review to comment on the mount - I had read in a few places that this mount was a loose fit and sometimes impossible to tighten. There is a screw that goes under the scope and a nut on one side that appears as if it's how you tighten it. It was a little loose when I first got this scope and tightening the nut didn't seem to make the scope tighter on the rail. It took me a minute to notice that the screw itself has a tiny allen key on the end (that's why they include an allen key with the scope) and you have to turn that to tighten it. Using that allen key, you can get it plenty tight. I'm wondering if those that left bad reviews on the mount didn't notice this allen key hole.