| Mount Type |
Multi-Height |
| Magnification |
3x |
| Objective Lens Diameter |
21 mm |
| Reticle |
AR-BDC4 |
| Eye Relief |
2.6 inches |
| Field of View (@100 yards) |
37.9 ft |
| Adjustment Graduation |
1 MOA |
| Max Elevation Adjustment |
250 MOA |
| Max Windage Adjustment |
250 MOA |
| Parallax Setting |
100 yards |
| Length |
3 inches |
| Weight |
9 oz |
What our Experts Think
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Perfect balance of speed & magnification – Fixed 3x magnification hits the sweet spot for close-to-mid range shooting while still reaching out to ~650 yards
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Crystal-clear prism optics – HD optical system delivers sharp resolution, improved contrast, and minimal distortion, outperforming many red dots in clarity
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Astigmatism-friendly design – Etched reticle remains crisp without relying on illumination, making it ideal for shooters who struggle with red dot starbursting
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BDC reticle for real-world shooting – AR-BDC4 reticle enables quick holdovers out to ~650 yards, optimized for common 5.56 setups
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Compact & lightweight build – Around 9 oz and ~3 inches long, making it one of the most compact prism scopes in its class
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Flexible mounting system – Includes multi-height mounts (low & lower 1/3 co-witness) for easy integration on AR platforms
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Rugged field durability – Shockproof, waterproof, and fogproof construction ensures reliability in harsh conditions
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User-friendly illumination system – Multiple brightness settings with night vision compatibility for all lighting environments
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Trade-off: fixed magnification – No true 1x option, so it’s less flexible than red dot + magnifier setups for ultra-close CQB
Q&A
Q: What is the Viper HD 12x50 (2018) best used for?
A: Ideal for long-range observation, hunting, and wildlife viewing, thanks to powerful 12x magnification and bright 50mm lenses.
Q: What optical quality can I expect?
A: Features HD extra-low dispersion glass + XR fully multi-coated lenses, delivering sharp resolution, accurate colors, and high contrast.
Q: How does it perform in low light?
A: Excellent—50mm objectives + advanced coatings maximize light transmission for clear viewing at dawn and dusk.
Q: What prism system is used?
A: Uses roof prisms with dielectric and phase-corrected coatings, ensuring bright, crisp, and color-accurate images.
Q: What improvements came in the 2018 version?
A: The 2018 update introduced a wider field of view, improved ergonomics, and easier eye positioning for more comfortable viewing.
Q: Is it durable for outdoor conditions?
A: Yes, it is waterproof, fogproof (argon purged), and shock-resistant, with rubber armor for a secure grip.
Maintenance Tips
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Clean lenses properly: Use a microfiber cloth and lens-safe cleaner to preserve HD optical clarity and anti-reflective coatings.
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Keep etched reticle visible: Ensure lens surfaces stay clean—etched reticle remains usable even without illumination, but clarity matters.
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Check mount tightness: Regularly inspect Picatinny mount screws to maintain zero and stability during recoil.
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Maintain diopter setting: Periodically check and adjust diopter to keep the reticle sharp for your eyesight.
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Keep turrets debris-free: Clean around adjustment turrets to ensure smooth 1 MOA click adjustments.
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Battery care (CR2032): Replace as needed and remove during long-term storage to prevent leakage.
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Protect from moisture & dust: Although waterproof, fogproof, and O-ring sealed, wipe down after harsh conditions.
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Avoid impacts: Shockproof design is durable, but minimizing drops preserves alignment and performance.
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Use lens covers: Prevent scratches and debris buildup when not in use.
