Athlon Cronus BTR GEN2 UHD 4.5-29x56 Features The Cronus BTR GEN2 UHD 4.5-29x56 utilizes UHD glass and advanced fully multi-coated lenses to reduce chromatic aberration while maximizing edge-to-edge clarity and contrast. XPL protective coating helps shield exterior lenses from dirt oil and scratches and argon purging ensures waterproof and fog proof reliability in harsh environments. The APRS6 FFP IR MIL reticle remains true to scale across the entire magnification range allowing precise ranging and holdovers for competition or extended-range hunting. Exposed MIL turrets feature sharp tactile 0.1 MIL clicks with 10 MIL per rotation and a precision zero stop system for confident dialing. The high-precision erector system and aircraft-grade aluminum 34mm tube construction deliver durability consistent tracking and long-term reliability shot after shot. Athlon Cronus BTR GEN2 UHD 4.5-29x56 Specifications Manufacturer: Athlon Model: Cronus BTR GEN2 UHD Magnification: 4.5-29x Objective Lens: 56 mm Tube Size: 34 mm Turrets: Exposed Reticle: APRS6 FFP IR MIL Eye Relief: 3.6-3.8" Field of View @ 100 Yds: 24.8-3.83 ft Click Value: 0.1 MIL Adjustment Per Rotation: 10 MIL Total Elevation Adjustment: 32 MIL Total Windage Adjustment: 18 MIL Parallax Adjustment: Side Focus 25 yds-a^Z Purging Material: Argon Weight: 35.8 oz Waterproof: Yes Fog Proof: Yes Shockproof: Yes Construction: One-Piece Tube