The MRT-3 FFP Tactical Mil Hash Reticle is designed by professional shooters. 18MIL length cross axis with 0.1 Mil floated bullet eyes, each small grid is 0.5MIL, the smallest grid is 0.25MIL. Tactical 2MIL – 8MIL Christmas tree-shaped rapid measurement area by mil dot & mil hash gives a quick estimate of the impact point in different environment.