Neat Nightforce 5.5-22x56 Scope. This has the low speed MOA turrets and would be perfect for a pre-2009 US military sniper rifle build (MK13, MK11, M110....) Please don't put high speed turrets or a ATACR on your MK13, it isn't cool. This has a Mil-Dot reticle and 0.25 MOA adjustments for wind and elevation. The optics are bright and the lenses are free of scratches. This optic is in excellent condition.