Burris P.E.R.P mount for Flat-top ARs

I just recently picked up a Burris P.E.R.P (proper eye position ready) mount for my 6.8 SPC. It is available for a 1in optics tube or a 30 mm. It has picatinny rails on the top of the mount. It is heavier than other solutions I have seen but the one piece design allows the base, riser, and rings to be integrated into one. The mounting rails on top will be especially handy for mounting a high-powered flashlight without sacrificing sight picture. This is a great solution to mount traditional optics to an AR. You also will not have to remortgage your house to attain one at about 80.00 USD.