Save your money and buy something else - FAB Defense Rear Polymer Flip-up Sight

I bought this sight because i wanted something different than what everyone else had. That was my first mistake. It does not secure tightly to the ar flat top. Its so loose im surprised it doesnt just fall off. Seriously that bad. Second, they advertise u can make "easy" adjustments using no tools. Again, horribly wrong. Its so hard to turn the windage you cant adjust it without tools. They build quality is nice, its very sturdy but thats as good as it gets. I should have just bought the magpul mbus.