I had no idea what I was actually doing when I mounted this Burris setup to my Sabre .308 upper. But, it works. This is the Burris clip on with the adapter specifically for the Burris LPVO. I'm actually really surprised how good it works. You do lose detail and resolution as you dial up the scope magnification. But it's only an 8x scope so it's not too bad. You don't need the rubber eyecup but I left it on because I'll lose it if I take it off. And, it doesn't hurt anything being left on...and it's always there if I decide to detach the thermal and use it as a hand-held.

