
RS4.2 - 5-30x56 FFP
Building on the proven performance of the original RS.4, the RS4.2 Riflescope represents the next iteration for shooters who live in the details. Designed for competitive shooting, long-range applications, and precision hunting, the RS4.2 raises the standard for control, confidence, and repeatability.
The RS4.2 features meaningful upgrades for serious shooters, including a 3-revolution locking elevation turret, capped windage, and an auto-off illuminated reticle to preserve battery life when it matters most. This first focal plane optic features a 5-30x magnification range, side parallax adjustment, 4-level red and green illumination, and your choice of MOA or MIL reticles. A toolless mechanical zero stop with positive stops ensures a fast, repeatable return to zero after every dial.
Designed for precision rifle competition and extended-range shooting, the RS4.2 delivers broad magnification, reliable tracking, and confident dialing shot after shot.
Like all RS Series rifle scopes, the RS4.2 features crystal-clear ED glass, a silky-smooth focus mechanism, precision-milled adjustments, positive click detents, and durable anodizing built to withstand heavy use in demanding conditions.
The Maven RS Series represents our elite line of rifle scopes, engineered to meet specific performance demands while delivering world-class quality at a fraction of the cost of comparable optics. Modern sportsman-inspired design, premium materials, and state-of-the-art technology come together in an uncompromising optic built for today’s precision-driven shooter.
Includes neoprene cover.
HIGHLIGHTS
-Premium Model
-Size: 12.8 in.
-Weight: 33.2 oz.
-First Focal Plane
-0.25 MOA/click or 0.1 MRAD/click
-Toolless Mechanical Zero Stop
-3-Revolution Locking Elevation Turret
-4 reticle options: SHR-W (MOA), MOA-2 (MOA), SHR-MIL (MIL), and CFR-MIL (MIL)
-4 Level Red and Green Reticle Illumination
-34mm Tube
-Extra-Low Dispersion ED Glass
-Exceptionally Clear, Bright, High Contrast Image
-Excellent Color Fidelity
-Phase Correction Coating
-Waterproof and Fog Proof
-Lifetime Warranty
-Direct to Consumer / No Retail Markup
Riflescope Comparison Chart (PDF)
Riflescope Manual (PDF)
Ballistics Calculator
Note: International orders may have restrictions or take additional processing time. Contact us if you have any questions or need additional information.
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RS4.2 MOA
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| Focal plane | First | ||
| Magnification range | 5x - 30x |
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| Obj. lens diameter | 56mm | ||
| Tube diameter |
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| Objective outer diameter |
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| Eyepiece outer diameter | 43.6mm | ||
| Overall length | 325mm / 12.79in | ||
| Weight (without battery) | 33.2oz / 941g | ||
| Internal adjustment range (MOA/MIL) | |||
| Travel Elevation | 120 MOA |
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35.5 MIL |
| Travel Windage | 50 MOA | 20 MIL | |
| Click value | 0.250 MOA | 0.1 MIL | |
| Adjustment per turret revolution | 25 MOA |
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10 MIL |
| Parallax adjustment | 15y - Infinity |
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| Exit pupil diameter | @5x: 8.9mm | @30x: 1.9mm | |
| Eye relief | @5x: 78-92mm | @30x: 86-92mm | |
| Field of view @ 100y | @5x: 23.3ft | @30x: 3.9ft | |
| Front/Rear mounting length | F: 61mm |
R: 42mm
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| Effective objective lens diameter | @5x: 44.5mm |
@30x: 56mm
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| Field of view | @5x: 4.46° |
@30x: 0.74°
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| Field of view, apparent |
@5x: 22°
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@30x: 22°
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| Diopter correction (dpt) | +/-3 |
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| Light transmission | 91.84% |
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| Twilight factor |
@5x: 16.73
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@30x: 40.98
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| Functional temperature |
-4°~158°F
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| Submersion tightness / waterproof rating | 3m depth |
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| Gas purged | Nitrogen |
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| Reticle construction | Etched Glass | ||
| Reticle options | MOA-2 / SHR-W |
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SHR-MIL / CFR-MIL |
| Illuminated reticle Y/N | Yes | Red/Green | |
| Origin | Made in Japan |
