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Athlon Optics 214505: Heras SPR 4-20X50 Riflescope Side Focus 1 Inch Sfp Aagr2 Moa

  • Rifle Scope
  • Hunting
  • Aluminum
  • Picatinny Mount
4.0/ 5 on Amazon4Amazon ratings2.7ProductDome score
Limited evidenceLast refreshed Jun 22, 2026Amazon data + ProductDome analysis · methodology
Best forYou want a wide 4-20x zoom range with a zero stop and locking turrets at this price point

A capable mid-range scope on glass and features, though a damaged-on-arrival report is worth planning around with a return-friendly seller.

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More from this brandAll Optics rifle scopes
ProductDome scorecard

How it ranks among the 359 rifle scopes we track

2.7/ 5ProductDome scoreLimited evidence
Owner satisfaction · 63% of scorecategory median 4.5★4.4

4.0★ across 4 Amazon ratings, Bayesian-smoothed toward the category average.

Evidence strength · 19% of scorecategory median 54 ratings0.9

4 Amazon ratings, weighted on a log scale so huge counts don't drown everything.

Data quality · 13% of score3.8

Brand identity, imagery, description and spec coverage.

The ProductDome score is separate from the Amazon rating shown above: it combines the Bayesian-smoothed Amazon rating with evidence volume, tracked demand, and data quality across the 359 rifle scopes we track - how the scorecard works · full rifle scopes data report. Confidence: limited - limited rating history.Last refreshed Jun 22, 2026. Data-computed, not a hands-on test. Compiled by the ProductDome Research Team.

Overview

A 4-20x50 second focal plane rifle scope with a side focus parallax adjustment, 1-inch main tube and an etched glass AAGR2 MOA reticle. Built for shooters who want a wide magnification range and a repeatable zero stop on a mid-priced optic.

Athlon pairs fully multi-coated glass with a zero stop turret system, so you can dial for a shot and return to your original zero without hunting for the mark. Locking turrets add a pull-up-to-adjust, push-down-to-lock step meant to keep the dial from getting bumped off zero in the field.

  • Side focus parallax adjustment
  • 1-inch aircraft grade aluminum tube
  • Etched glass AAGR2 MOA reticle
  • Fully multi-coated lenses for light transmission

Who it's for

Shooters who want one scope to cover both closer, faster shots and longer precision work through a 5x zoom range. Not aimed at buyers who need a first focal plane reticle for holdover at every magnification.

What buyers say

From Amazon customer reviews.

Reviewers who received a working unit called the glass nice and clear with crisp adjustments and said it was worth the money, but one buyer reported their scope arrived damaged out of the box.

Strengths and trade-offs

Drawn from this product's published specifications.

What stands out
  • Wide 4-20x zoom range on one scope
  • Zero stop turret returns to a fixed zero
  • Locking turrets resist accidental adjustment
  • Waterproof, fogproof and shockproof construction
What to check first
  • Second focal plane reticle only reads true at max zoom
  • At least one unit arrived damaged

Performance notes

The second focal plane AAGR2 MOA reticle stays a constant size regardless of zoom, which keeps it easy to see at low power for quick target acquisition but means holdover marks only read true at max magnification. The zero stop and locking turrets are built for shooters who dial rather than hold over, letting you crank elevation for a long shot and spin straight back to a mechanical zero stop.

Specifications

BrandOptics
Model214505
Dimensions & fit
Item Weight1.56 pounds
Construction & materials
Material TypeAluminum
ColorBlack
Compatibility & installation
Mounting TypePicatinny Mount
Compatible DevicesRifle
Included components
Included ComponentsAthlon Optics 214505: Heras Spr 4-20X50 Riflescope Side Focus 1 Inch Sfp Aagr2 Moa
Other details
Sport TypeHunting
Night visionNo
Product StyleClassic,Modern
Item Type NameHunting scope

How it compares

This product against the closest alternatives we track in rifle scopes.

ProductAmazon ratingRatingsProductDome score
Athlon Optics 214505: Heras SPR 4-20X50 Riflescope Side Focus 1 Inch Sfp Aagr2 MoaThis product4.0 / 542.7 / 5
UTG 3-12X44 30mm Compact ScopeUTG4.5 / 53,0004.4 / 5
Vortex Optics Diamondback Second Focal PlaneBrand4.7 / 51,5004.3 / 5
PINTY Tactical Rifle Scope Combo: Illuminated OpticsPinty4.4 / 51,1004.3 / 5
Firefield RapidStrike 1-6x24 SFP Riflescope KitFirefield4.5 / 59004.3 / 5
Frequently asked

Questions about the Optics 214505

Common buyer questions answered straight from the product spec data - no fluff, no "it depends".

Is the Athlon Heras SPR 4-20X50 a first or second focal plane scope?

Second focal plane, so the reticle size stays constant as you zoom and holdover marks are only accurate at maximum magnification.

Does it have a zero stop?

Yes, Athlon's zero stop system lets you dial elevation for a shot and return the turret to your original zero position with a hard mechanical stop.

What tube diameter does it use?

A 1-inch aircraft grade aluminum tube.