Burris states their AR-1X CQB 1x20mm Prism Red Dot Sight can be used in conjunction with a magnifier. The distance between the magnifier and the prism can vary depending on the amount of available rail space you have. There is no exact distance provided in which the magnifier will work best with this prism, however like any 1x optic, a magnifier will work being set up directly behind the optic, or with a gap between the two.