OK so I have a new marlin 917 vrx I am setting up. I've done the Boyd's tacticool stock conversion. My optic is the Burris Mtac 4.5-14x42. I installed the DIP 25 MOA rail and Burris xtr lows. So here is my issue. I need another 1/2-3/4" for eye relief in the scope to be comfy on the gun...