EOTech, Vudu Rifle Scope, 1-6X24mm First Focal Plane, SR-1 Green Illuminated MRAD Reticle, Black 1-6x Magnification The SR1 incorporates the iconic EOTECH illuminated speed ring along Uses MRAD sub-tension lines for ranging, holdover and wind compensation First focal plane design allows for lightning fast target acquisition using the speed ring at the lower power settings 30 mm Tube diameter, 24 mm Objective Made in Japan This is an optic that feels at home on the AR platform or on a bolt action rifle. The EOTECH Speed Ring reticle allows for fast target engagement at low power, but at higher power provides the resolution and accuracy required to tackle longer shots. The Vudu 1-6X is the perfect solution for short- to medium-range applications