Does it work, yes. are the ring tops misaligned to the bottoms when installed, yes. - Vortex Sport Cantilever 30mm Rifle Scope Ring Mount

It'll work. I could do without OPMOD written on it. Are these B-stock from Vortex, though? I ask because the ring tops do not line up to the ring bottom when installed. It also needed to be lapped in order to not scratch the scope tube... there was uneven pressure. My other Vortex mount of the same ilk (just not OPMOD) is perfect. Both this mount and the other mount I have have a design flaw where if you try to remove the scope, the clamp will not back off and you have to entirely remove the clamp. Annoying, but you live with it.