Originally Posted by EvilGenius
Does it not bounce or vibrate out front like that?
No. I have a more recent AR, a Rock River Armory A2 in CAR configuration much like that. It has the integral sight/carry-handle setup, so I did a Trijicon Reflex sight set up on that exact same kind of base, in a scout position. It works fine and is rock solid. Of course, those sights aren't really high precision like a big power scope, but they are light and the mount is more than sufficiently rigid.