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Athlon Optics

Athlon Optics Ares ETR Gen2 FFP Rifle Scope

  • Magnification Minimum: 4.5x
  • Objective Lens Diameter: 56 mm
  • Mounting Type: Picatinny Mount
  • Night vision: No

Last refreshed Jun 22, 2026 · Based on the Amazon listing and published specifications, not hands-on testing.

Our verdict

Push this scope toward its 30x top end and the UHD glass earns its keep; that is where the Ares ETR GEN2 separates itself from the standard HD line.

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ASIN: B0DQVPNQ7TCategory: Rifle Scopes

Overview

Stepping up from the BTR line, Athlon's Ares ETR GEN2 (model 212113) is a 4.5-30x56mm first focal plane rifle scope built with UHD glass to cut chromatic fringing at high power.

UHD glass is Athlon's step up from standard HD glass, meant to cut the color fringing that shows up at high magnification, which matters most at the 30x top end of this scope's range. The GEN2 update keeps the Ares line's illuminated etched reticle and zero-stop turret, and adds lockable turrets to guard against accidental changes while carrying or handling the rifle. Athlon markets it across hunting and precision long range competition use.

  • Illuminated etched glass reticle
  • Precision zero-stop turret system
  • UHD glass built to cut chromatic fringing
  • Model 212113 in Athlon's Ares ETR GEN2 line

Who it's for

This scope earns its keep with hunters and long range competition shooters pushing toward the 30x top end who want a 56mm objective and locking turrets. Shooters who rarely dial past moderate power will not notice much benefit from the UHD glass.

Pros and cons

Pros
  • UHD glass reduces chromatic fringing at high power
  • 4.5-30x zoom with 56mm objective
  • Lockable turrets protect zero setting
  • First focal plane reticle scales with magnification
Cons
  • 56mm objective adds bulk versus smaller-objective scopes
  • High top-end magnification needs a stable rest to use well

Performance notes

At the top of its 4.5-30x range through a 56mm objective, UHD glass is what keeps color fringing down, according to Athlon's design goal for this line. The illuminated reticle sits on the first focal plane so it scales correctly at any power, and the zero-stop turret pairs with a lock to hold a set zero and block accidental dial changes.

Specifications

BrandAthlon Optics
Dimensions & fit
Objective Lens Diameter56 mmhigher than 91% of 309 rifle scopes
Item Weight2.3 poundshigher than 90% of 238 rifle scopes
Construction & materials
Material TypeSee Description
ColorBlack
Compatibility & installation
Mounting TypePicatinny Mount
Compatible DevicesRifle
Included components
Unit Count1
Included ComponentsSee Description
Other details
Magnification Minimum4.5x
Night visionNo
Sport TypeHunting & Shooting
Reticle TypeIlluminated MOA

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Frequently asked questions

What is different about UHD glass on the Athlon Ares ETR GEN2?

Athlon uses UHD glass on this model specifically to reduce chromatic fringing, the color halo that can appear at high magnification.

What magnification range does the Athlon Ares ETR GEN2 cover?

It covers 4.5-30x magnification through a 56mm objective lens.

Does the Athlon Ares ETR GEN2 hold clarity at full magnification?

One buyer reported good clarity even with the scope set to full power.