ATHLON Cronus BTR Gen2, Rifle Scope, 4.5-29X Magnification, First Focal Plane, APLR5 Reticle, 56mm Objective, 34mm Main Tube, Black 210113 A titan in long-range precision, the Cronus BTR GEN2 is an ideal competition scope for your PRS rifle or PRS trainer rifle. Poor weather and low light conditions are no match for UHD extra-low dispersion lenses. Cut through mirage and leave the competition in the dust. From precision shooting to the most demanding hunt, the Cronus BTR GEN2 is up to the challenge. The next generation of the Cronus BTR is now equipped with our applauded internal stainless-steel component turret design producing sharp, loud, tactile clicks.