Perfect for half the price - Precision Reflex PRi Mini Red Dot Base For 30mm Scope

PRI makes really good stuff. This is a great item at half the price of TJ product. The dimensions are such that it takes patient screw tightening to even all sides out. It’s a huge bonus that it works as a top ring on the aluminum PRI rings. As another reviewer mentioned you just need to watch overall height of RMR/holo. But, this can but put at the 2oclock position to reduce height a bit at offset. That also gets it out of the way if you have tall turrets. Or on a hunting rifle use it with lower rings and as a top ring.