Sightron SVIII 5-40x56 ED Zero Stop Illuminated LRM Riflescope

The Sightron SVIII 5-40x56 ED Zero Stop Illuminated LRM Riflescope is a purpose-built first focal plane optic for long-range target shooters and precision hunters who demand clarity and repeatability at distance. Built around a 40mm tube and ED glass, this scope combines modern tactical features—internal zero stop, illuminated reticle, and mil-based adjustments—with the optical refinement serious shooters expect from a premium scope.

What sets the SVIII apart is the combination of ED (Extra-Low Dispersion) glass and Sightron's new MC-777 fully multi-coated lens system, engineered to maximize light transmission and edge clarity across the magnification range. The 5-40x zoom gives you flexibility whether you're setting up for precision range work or adapting to variable hunting distances. The 56mm objective gathers plenty of light, particularly valuable at higher powers or in lower-light conditions typical of early morning and evening hunting.

The tactical turrets feature oversized knobs with high-visibility markings and Sightron's ExacTrack windage and elevation system for true, repeatable adjustments. The internal zero-stop mechanism provides both tactile and audible confirmation when you return to your dialed zero, eliminating guesswork and speeding up field adjustments. With 40 MRAD of elevation and 20 MRAD of windage, you have the adjustment range needed for extended-distance shooting; 0.1 MRAD clicks keep corrections precise. The illuminated LRM (Long Range Marking) reticle sits in the first focal plane, maintaining consistent subtension across all magnifications—essential for holdover calculations at distance. An 11-position side-mounted dial powers the reticle brightness (battery included). The scope is waterproof, fog-proof, and nitrogen-charged, with side focus that lets you dial parallax from 10 meters to infinity. It comes with a 3-inch sunshade, aluminum lens covers, 40mm rings for Picatinny rails, and adjustment tools.

At 49 oz and 16.8 inches long, it's hefty but balanced—a serious scope for shooters who value optical performance and tactical repeatability over weight savings.

Key Features

• ED (Extra-Low Dispersion) glass for superior brightness and clarity at distance
• 40mm tube diameter with extreme 40 MRAD elevation and 20 MRAD windage adjustment range
• Internal zero-stop mechanism for positive, repeatable returns to zero
• First focal plane illuminated LRM reticle with 11-position brightness dial
• 0.1 MRAD tactical clicks for precision long-range holds and windage corrections
• MC-777 fully multi-coated optics for enhanced light transmission
• ExacTrack precision windage and elevation system
• Side focus parallax adjustment (10 meters to infinity)
• Waterproof, fog-proof, nitrogen-filled construction
• Includes sunshade, lens covers, Picatinny rings, battery, and adjustment tools

Specifications

Frequently Asked Questions

Is the Sightron SVIII 5-40x56 a first focal plane scope?

Yes. The reticle is positioned in the first focal plane, so the reticle size and subtension remain consistent across all magnification settings. This design is ideal for long-range shooting where you need to use holdovers at different magnifications.

What does the zero stop do?

The internal zero-stop mechanism provides a tactile and audible positive stop when you return your elevation knob to your dialed zero. This prevents accidentally overshooting zero during field adjustments and gives you confidence that you're back on your confirmed zero setting.

What's included in the box?

The scope comes with a 3-inch sunshade, CR2032 battery for the illuminated reticle, screw-in aluminum lens covers, 40mm Picatinny mount rings, a T-15 wrench for the rings, an Allen wrench for knob and zero-stop adjustments, and a lens cleaning cloth.

What's the adjustment range for windage and elevation?

The SVIII offers 40 MRAD of elevation adjustment and 20 MRAD of windage adjustment, both at 100 meters. The 40mm tube diameter enables these generous ranges, critical for shooters dialing to extreme distances or dealing with high wind values.