Steiner, P4Xi, Rifle Scope, 1-4X, 24mm Objective, 30mm Tube Diameter, 1/4 MOA, Second Focal Plane, Matte Finish, Black WARNING: Cancer and Reproductive Harm - www.P65Warnings.ca.gov. One Piece 30Mm Tube 4X Zoom Consistent Eye Relief Low Profile Turrets / Illumination Controls Illuminated Reticle Waterproof/Fogproof/Shockproof The P3Tr Reticle Product Description The P4Xi riflescope is a compact, tactical optic that is ideal for patrol rifles and AR platforms. This scope features a proven and versatile 4x zoom system with a true 1x that is perfect for close-quarters engagements and 400-yard accuracy at the highest magnification.