Steiner Predator 4, Rifle Scope, 4-16X, 42mm Objective, 30mm Tube Diameter, E3 Reticle, 1/4 MOA, Second Focal Plane, Matte Finish, Black 8772 The Predator 4 riflescopes offers a compact, lightweight design while providing the military ruggedness and durability you've come to expect from Steiner! Best-in-class optical clarity, with a massive field of view to deliver industry leading light transmission, and outstanding results in low light conditions.