FFP Half Mil Reticle The FFP Half Mil reticle was developed specifically for first focal plane optical systems and based around the common principles of mil spaced reticles. With half mil spaced markings out beyond 5 mils in all directions, the FFP Half Mil is a versatile reticle that provides aim points no matter how extreme the conditions. A series of crosses etched on the lower section of the reticle make for extra windage aim points and act to give an easy quick-glance method of counting which mil spacing you’re aiming with. Outer posts are segmented into half mil spacing and 0.2 mil spacings, so can be used for bracketing and rangefinding.