There's not a scope in the world, that I know of, I'd trade mine for.
It's just as rugged as the NXS. The mechanical quality actually feels even better, if it's me you're asking. The tube itself is even thicker. All in all, it's not a scope I'm afraid of damaging. But yes, they are primarly intended for LE and not military. Although the latest rumour I heard was that the USMC are swapping all their Unertles and Leupolds for the PM II 3-12x50. I know the actual users will be extremely happy once they master the metric system (if that's the model they're getting...).
I have a 4-16x50 mil-dot with single turn towers. And I wouldn't want it any other way, to be honest. It's THE scope for me. I got it for a fair price and I'm never ever selling it or trading it away.
This wasn't exactly a scientific analysis.. but I don't think I can say it better than this test the Hide and 6mmBR did, anyway. But just as if there's something, I can always try...
Like I've mentioned in another thread, I know THE guy to contact if anyone should decide to buy one. PM me for info.
If I wasn't already in love with Hensoldt and Zeiss tactical scopes, S&B would probably top my list. Even if they are geared mostly for LE work, they are rugged enough for military field work. Good old german engineering: Just because it's primarily made for LE work does not mean it should be made less rugged. Optics are good, and the only one I know who's had a trouble did get prompt help from S&B.