Athlon Cronus BTR 4.5-29X56 FFP IR MIL
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Athlon Cronus BTR 4.5-29X56 FFP IR MIL

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$2,159.99 $1,799.99
(You save $360.00)
Cronus BTR Instruction Manual:
Cronus BTR APRS FFP IR MIL Reticle Manual:

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Whether you want to do precision long-range shooting and tactical applications, or extreme long range hunting adventures, the new Cronus BTR scope is just what the doctor ordered. With all of the same key features of the Cronus line, the new Cronus BTR is redesigned to be even better! We improved the parallax adjustment yard markings to go from 25 yards to infinity (added markings at 300, 500, 800 and 1600 yards), designed a new reticle as well as re-designed the battery compartment to make it easier to adjust the illumination. The best just got better!

This Cronus BTR 4.5-29×56 Model has APRS first focal plane illuminated MIL reticle in it. Please click the link for detailed reticle subtension…

HD Glass gives you the utmost contrast, light transmission, and the sharpest image.
The illuminated reticle provides greater visibility during dusk and dawn and other low ambient light environment.
First focal plane reticle stays valid at all power settings allowing you to fully utilize the specially designed reticle that shrinks or grows along with your target as you zoom in or out. The reticle offers quick target engagement at low power while offering precise holdover positions with finer details.
Reticle etched on the glass that provides excellent backing support for complex reticle design and offers great durability and much higher shock resistance to recoil
Fully Multicoated optics effectively reduces reflected light and increases the transmission of light giving you a brighter image than normal single coated lenses
XPL Coating gives you an extra protection on the exterior lenses from dirt, oil and scratches or anything else mother nature can throw at you.
The system allows you to lock down your zero position and dial back to it with a sharp and precise stop right at your zero mark even you are turning it in pitch-dark or blinded folded.
The high precision erector system processed by high precision CNC machine with +/- 0.0001mm tolerance level to provide you the most accurate power settings and smoothest magnification change
The 6061T6 aircraft grade aluminum tube that has exceptional strength and superior mechanical integrity will protect these world class optics no matter what punishment you throw at it.
Exposed Direct Dial Turrets for elevation and windage allow you to quickly make adjustment as you needed and engage your target within a blink of your eyes
Heat treated one piece tube gives the scope extra strength over multi-piece tubes. A one piece tube also is better at keeping moisture out thus keeping your scope fog proof for the life of the product
Waterproof to protect the scope in the harshest weather conditions or if accidently submerged underwater
Fog proof to allow you to immediately engage your target when you take your rifle to cold ambient temperature from warm inside
Robust mechanical system with special designs on both control and erector system that give you the ultimate recoil resistance to withstand 1000G recoil for 1000 times.
Argon Purging uses the inertia gas with bigger size molecules to purge any moisture out of the tube giving you better waterproofing and thermal stability.


  • Magnification4.5-29
  • Objective Lens Diameter 56 mm
  • Reticle APRS FFP IR MIL, Glass Etched
  • Surface Finish Matte
  • Lens Coating Advanced Fully Multicoated
  • Extra Coating Xtra Protective Coating
  • Tube Material 6061 Aluminum
  • Tube Diameter 34 mm
  • Exit Pupil8.8-1.9mm
  • Eye Relief 36-3.8"
  • Field of View @100 yards 24.8-3.83 ft
  • Click Value 0.1 MIL
  • Adjustment range per rotation 10 MIL
  • Total Elevation Adjustment 32 MIL
  • Total Windage Adjustment 18 MIL
  • Turret Style Exposed Direct Dial
  • Parallax Adjustment Side Focus – 25 yards to infinity
  • Purging Material Argon
  • Length14.3"
  • Weight 35.8 oz

Warranty Information

ATHLON LIFE TIME WARRANTY Your Athlon product is not only warranted to be free of defects in materials and workmanship for the lifetime of the product. Athlon will also repair or replace, at no charge to you, your product if you should damage it through normal use. No receipt needed, no registration required. This is a commitment that Athlon will be the best product you can buy for your money. *This warranty does not cover damages caused by deliberate damage, misuse, theft or maintenance provided by someone other than the Athlon Authorized Service Department. * Athlon Life Time Warranty only covers binoculars, riflescopes, spotting scopes, red dots, prism scopes, magnifiers, and laser rangefinders. Other Athlon Products have standard one year warranty.

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You may return most new, unopened items within 30 days of delivery for a full refund. We'll also pay the return shipping costs if the return is a result of our error (you received an incorrect or defective item, etc.).

You should expect to receive your refund within four weeks of giving your package to the return shipper, however, in many cases you will receive a refund more quickly. This time period includes the transit time for us to receive your return from the shipper (5 to 10 business days), the time it takes us to process your return once we receive it (3 to 5 business days), and the time it takes your bank to process our refund request (5 to 10 business days).

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