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$1,499.99
Reticle:APRS1 MIL
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Description
The Athlon Optics 4.5-29x56 Cronus BTR Gen2 Rifle Scope offers updated technology compared to previous scopes. It uses a 34mm aircraft-grade aluminum one piece tube that is heat-treated for additional durability, as well as a 56mm objective lens that delivers crisp views for situations where precision is paramount, such as PRS shooting.
The scope is shockproof, waterproof, and argon purged for enhanced fogproofing, so it is reliable and works well in a variety of conditions. In addition, it utilizes XPL protective coating on its advanced fully-multicoated lenses with UHD glass to provide superb results with very low dispersion even in low light situations or inclement weather.
The Athlon Optics 4.5-29x56 Cronus BTR Gen2 uses the updated precision zero stop system with a hard stop, and upgraded stainless steel components in the turrets with well-defined clicks that can be felt and heard. The turrets are exposed, and the elevation turret adjusts in a range of 32 MIL, and the windage turret adjusts in a range of 18 MIL, both using .1 MIL increments and 10 MIL per revolution.
The APRS1 FFP (First Focal Plane) MIL reticle utilizes etched glass and a variety of dots and hash marks to make aiming simple and fast, allowing excellent outcomes for target shooting and hunting. It also has illumination that can be activated in multiple levels of brightness for added visibility against dark targets.
For a scope that offers high performance for incredibly accurate shots, buy an Athlon Optics 4.5-29x56 Cronus BTR Gen2 Rifle Scope at Pyramyd Air today.
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Athlon Optics 4.5-29x56 Cronus BTR GEN2, APRS1 FFP, .1 MIL, 34mm Tube
- 4.5-29x magnification
- 56mm objective lens
- 34mm aircraft-grade aluminum tube
- Exposed turrets
- Precision zero stop
- UHD glass
- 3.6-3.8" eye relief
- 25 yds to infinity side parallax adjustment
- 24.8-3.83 feet Field of view at 100 yards
- 0.1 MIL Click Value
- 10 MIL adjustment per rotation
- 32 MIL total elevation adjustment
- 18 MIL total windage adjustment
- 14.4" long
- 35.8 oz
- Illuminated APRS1 FFP (First Focal Plane) MIL Etched Glass Reticle
- Advanced Fully-Multicoated lenses
- XPL protective coating
- Heat-treated one piece tube
- Waterproof
- Fogproof
- Shockproof
- Argon purged
- Lifetime warranty
Specifications
Overall Rating
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Tell us what you think
10 of 16 Athlon Optics 4.5-29x56 Cronus BTR Reviews

After shooting scopes with twice the price tag, I had the opportunity to play with the Athlon Chronus BTR. I was blown away by the clarity of the glass and tracking. I purchased this model scope for a 6 dasher build and believe it is hard to beat at any price.

This scope is amazing bang for the buck. I mounted this on a 6.5CM and used it to hit targets out to 1 mile. The glass clarity is excellent, and I have no problem spotting impacts on steel out to 1200 yards and I had no problem seeing my misses at 1 mile. It feels very well built and I appreciate the fine parallax adjustments, the clicky, tactile feedback of the turrets and resetting the zero and setting the zero stop is straightforward. It tracks well. This scope punches way above it's price point. Buy with confidence.

I have the Athlon Cronus Gen 2 mounted on my 6GT that I shoot out to 1000 yards and more. The glass quality has been perfect for my needs and the tactile turrets make feeling and hearing the clicks so much easier. The reticle has what I need and not a bunch of clutter. I don't know that I would be able to design a much better one myself.

I wasnt sure about trying an Athlon scope. I was a little hesitant. I have to say, I was more than surprised at the quality of glass, nice turrets with strong, audible clicks. The reticle is a breeze to actually use hold over points without any illumination. I do own Nightforce NX8's and Atacr's, Zeiss, Steiner, Vortex from PST- Razors, Swarovski, and Leupolds up to Mark 5 and VX6's. I would not hesitate to buy another. I did. The Cronus 4.5-29 is an all-around great scope for hunting or target. I'm looking at a thermal from them now. Great job on the Cronus. Solid 9.5 actually with a 12 for value. I'll add a picture shortly.

The optical quality and performance of the glass in this scope punches well above its weight and price. The clarity and light transmission are superb and the reticle is extremely clear. I appreciate the 34mm main tube as it works well with almost all of the industry one piece mounts and appears to be very well built. The only flaw I see with this scope is the turrets. The turrets appear to track well and didn't have any tracking errors, but the turrets themselves are very tight and the tactile clicks are so closely spaced they just don't flow very well when you are rapidly adjusting elevation and windage. The numbers and hashes could be more prominent on the turret and this is one of the first things you will want to fix (Get some IDTS tape for the elevation and windage). Overall this is a solid performer and with some minor tweaks this could be a class winning scope.

This is my third Athlon scope and the reason I keep coming back is the quality of the glass at this price point. I have used these in everything from desert sun to forest shadows to low light at dusk and the glass is always crisp an clear. Of course all scopes experience some degradation at the upper end of the magnification range, I find Athlon's optics keep this to a minimum. I would recommend this scope to anyone who is looking for a good scope at a great price.

This scope now sits on two long range student rifles. - Clarity of the glass is very good. Allowing shooters to see sharp detail at up to 1200 yards (furthest distance tested) and track impacts on steel. At the highest end of magnification the focus can become finicky and the eyebox becomes tighter, but definitely still useful. - Tracking is as good as any other scope I've ever used including far more expensive ones. - Turrets, very tactile and audible clicks. Numbering is a little small but definitely usable. - Reticle, I now own this in both MOA and MIL reticle in both is very useful. Lots of data but not as crowded as some others a very useable happy medium. - Weight, it's a tank! However, that weight seems to be directly related to this scopes durability... I've beat on these scopes and they have taken it without ever losing zero. Excellent scope even at full price it's a solid deal.

Although it's a little on the heavy side, it's a nice optic that gets the job done

This is a great scope with very clear glass and solid and precise turrets. I have owned several of these and they are rock solid and on par with scopes costing 2-3 times as much.
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Feb 13, 2026
By Sawyer L
This scope is a high quality japanese made optic with glass on par with or better than similar options like the Razor. Turrets track very well and are consistent. They don't lock but this is a nice scope more for PRS. Reticle is clear, but is intended for use at higher magnification since the stadia are pretty thin. It's good for use with NRL22, my use, and on gas gun precision type competitions.