Athlon Optics Cronus BTR GEN2 UHD 4.5-29×56 APRS1 FFP IR MIL

The Athlon Cronus BTR GEN2 UHD 4.5-29×56 APRS1 FFP IR MIL is Athlon's flagship long-range MIL scope, combining UHD extra-low-dispersion glass and a 34mm tube with 32 MIL of elevation travel, a Christmas-tree FFP reticle with 0.2 MIL holdover increments, stainless steel turret internals, and a precision zero stop: a true MIL/MIL system that speaks one language from reticle to turrets.

Key Features

• UHD extra-low-dispersion glass with advanced fully multi-coated lenses and XPL protective coating delivers bright, color-true images with virtually no chromatic fringing, even when glassing high-contrast edges at 29x.
• 32 MIL total elevation and 18 MIL total windage adjustment in a 34mm one-piece tube with 10 MIL per revolution, giving you the travel to dial confidently past 1,000 yards on virtually any centerfire cartridge without a canted rail. The 10 MIL per revolution keeps your mental math simple: one full turn equals 10 MIL, and every click is exactly 0.1 MIL
• APRS1 FFP IR MIL Christmas-tree reticle — the first focal plane design keeps all subtensions accurate at every magnification, so you can hold over at 15x during a stage transition just as confidently as at 29x during a precision string. The reticle features a floating 0.04 MIL center dot for fast target acquisition, 0.2 MIL fine hash marks, numbered holdover references to 10 MIL below center, and 6 MIL of windage references on each side, giving you 12 MIL of total wind hold without touching a turret
• Exposed elevation and windage turrets with stainless steel internal components produce sharp, loud, tactile clicks that are easy to count even with ear protection. The stainless internals resist wear and maintain consistent feel over thousands of adjustments
• Precision zero stop returns to your exact zero with a hard, repeatable mechanical stop: dial up for a 1,200-yard shot and come straight back to zero without counting clicks or checking the turret indicator
• 4.5-29x magnification with a 56mm objective — 29x gives you the resolution to read mirage, spot trace, and identify targets at extreme distance, while the 56mm objective gathers enough light to maintain a bright, usable image through the power range. The 4.5x low end provides a wide field of view (24.8 ft at 100 yards) for target acquisition and stage transitions
• Red illuminated reticle with 11 brightness settings — daylight-bright illumination with off positions between each setting for rapid on/off cycling without hunting for your preferred brightness. Powered by a standard CR2032 battery
• Side-focus parallax adjustment from 25 yards to infinity — covers everything from mid-range precision work to ELR
• Argon-purged, one-piece aircraft-grade aluminum construction — waterproof, fogproof, and shockproof. Argon provides superior fog resistance compared to nitrogen purging.

Ideal For

PRS and NRL competitors running MIL turrets and MIL reticles, the dominant combination in competitive precision rifle. The 32 MIL of elevation travel, zero stop, stainless turret internals, and crisp 0.1 MIL clicks deliver the mechanical features that competition demands, and the APRS1 Christmas-tree reticle gives you fast wind holds without leaving your position on the elevation dial.

Long-range precision shooters building MIL/MIL systems around 6.5 Creedmoor, .308 Winchester, 6.5 PRC, or magnum cartridges: the 34mm tube and 32 MIL of elevation put confident dialups past 1,000 yards within reach, and the UHD glass lets you read conditions and correct at distance with clarity.

Designated marksman and tactical shooters who need a versatile optic that transitions from close-range identification at 4.5x to precise engagement at 29x: the MIL reticle's wind hold references and the 10 MIL per revolution turrets support rapid solutions without a ballistic computer. The scope handles the DMR role that Athlon designed it for: short-range situational awareness through long-range precision in a single optic.

Western big-game and mountain hunters who glass at distance and make shots across canyons: the 4.5x low end handles close encounters in timber, while 29x lets you evaluate trophy quality and read wind at 500+ yards. At 35.8 oz it suits hunters who put glass quality and adjustment range ahead of ounce-counting. The illuminated reticle extends your shooting window into the low-light minutes that bookend every hunting day.