Vortex Optics Diamondback 4-12x40 SFP Riflescope (MOA) Reticle, 1 inch Tube with Wearable4U Bundle - VMR-1
Exposed turrets built for dialing elevation and windage allow wind drift compensation at extended ranges. When we say precise - we mean it. These turrets track better than any Bloodhound and reliably return to zero every time. A zero-reset feature lets you re-index the zero reference marks on both turrets after sight in, while fiber optic rotation indicators integrated into the turrets provide a visual cue of your turret’s position.
Features
- XD Lens Elements
- Fully Multi-Coated
- Second Focal Plane Reticle
- Aircraft-Grade Aluminum
- Waterproof
- Fogproof
- Shockproof
- Hard Anodized Finish
- Precision-Glide Erector System
- Exposed Turrets
- Fast Focus Eyepiece
- Radius Bar
- Magnification Rib
Specifications
| Magnification |
4–12x |
| Objective Lens Diameter |
40 mm |
| Eye Relief |
3.9 inches |
| Field of View |
23.6 – 7.9 ft @ 100 yds |
| Tube Size |
1 inch |
| Adjustment Graduation |
1/4 MOA |
| Travel Per Rotation |
12 MOA |
| Max Elevation Adjustment |
70 MOA |
| Max Windage Adjustment |
70 MOA |
| Parallax Setting |
100 yards |
| Length |
14.08 inches |
| Weight |
17.5 oz (≈ 0.50 kg) |
What our Experts Think
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Excellent budget-to-performance ratio
Delivers clear optics, solid tracking, and durable construction at an entry-level price—making it one of the best-value scopes for beginners and casual shooters
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Versatile 4–12x magnification for real-world use
Ideal for short to mid-range shooting (100–600 yards), offering enough zoom for precision without sacrificing usability
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VMR-1 MOA reticle = simple but effective
Provides useful hash marks for holdovers and wind correction while maintaining a clean, uncluttered sight picture—great for learning MOA shooting
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Second Focal Plane (SFP) for clarity and ease
Reticle stays consistent in size, making it easier to see and use—best optimized for accuracy at higher magnification
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Reliable turret system for dialing adjustments
Exposed turrets with 1/4 MOA clicks and ~70 MOA travel provide dependable tracking and repeatability for dialing elevation and windage
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Surprisingly good optical quality for the class
XD glass and fully multi-coated lenses deliver sharp images, good contrast, and solid low-light performance for its price range
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Rugged, field-ready construction
Built from aircraft-grade aluminum and nitrogen-purged for waterproof, fogproof, and shockproof performance
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Lightweight and easy to mount (1-inch tube)
At ~16–17 oz, it keeps rifles balanced and works with widely available mounting systems
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Bundle adds practical value
Wearable4U accessories and included extras make it a more complete, ready-to-use package out of the box
Q&A
Q: What is the Diamondback 4-12x40 riflescope best used for?
A: It’s ideal for hunting, recreational shooting, and mid-range precision, offering reliable performance out to extended distances.
Q: What magnification range does it offer?
A: It features a 4x–12x zoom range, providing a balance between close-range visibility and longer-distance targeting.
Q: What type of reticle does it use?
A: It uses the VMR-1 MOA reticle in a second focal plane (SFP), designed for accurate ranging, holdovers, and wind corrections.
Q: What are the benefits of the SFP design?
A: The reticle remains the same size at all magnifications, offering a clean sight picture and best accuracy at higher zoom levels.
Q: How is the optical performance?
A: XD extra-low dispersion glass and fully multi-coated lenses deliver bright, sharp images with excellent contrast and reduced glare.
Q: How accurate are the adjustments?
A: It offers precise 1/4 MOA click adjustments with up to 70 MOA elevation and windage travel for fine-tuned accuracy.
Q: Is it durable for outdoor use?
A: Yes, it features aircraft-grade aluminum construction and is waterproof, fogproof, and shockproof for rugged conditions.
Q: What are the key specifications?
A: It includes a 40mm objective lens, 1-inch tube, ~3.8–3.9" eye relief, and weighs around 16–17.5 oz.
Q: Does it have parallax adjustment?
A: It has a fixed parallax setting at 100 yards, making it simple and user-friendly for general shooting.
Maintenance Tips
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Clean lenses gently: Use a microfiber cloth or lens brush to protect multi-coated optics and maintain sharp image quality.
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Check mounting hardware: Ensure rings and base are properly torqued to maintain zero under recoil.
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Inspect turrets regularly: Confirm smooth elevation and windage adjustments for consistent accuracy.
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Keep lenses covered: Use lens caps to prevent dust, scratches, and environmental damage.
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Avoid harsh chemicals: Only use optics-safe cleaning solutions to preserve coatings.
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Store in a cool, dry place: Supports long-term durability and internal seal integrity.
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Verify zero periodically: Especially after transport or extended use.
Damage 
Loss 
Theft 
