ive got a custom ascent with a vengeance base for the 3rd axis adjustment.it is a rock solid sight.awesome customer service.i have only one complaint.when adjusted down to 90 or 100 yards the pin is at such a depth that u can see alot of the width of it.i got over it,just was a little distracting at first.super bright pins in low light n the photocromatic shell keeps the pins from starbursting in bright light.