Re: Whats the best Iron Sights for AR-10 off the Rail?
If you're mounting the front sight on the quad rail and if the quad rail is the same height as the receiver, then an AR15 front sight works fine. If you were to mount the front sight onto an AR10 gas block, then you need a taller AR10 specific front sight such as those available from GG&G or MI due to the AR10 receiver being approximately .1" higher over the bore than an AR15 receiver.