Sightron SIII PLR 8-32x56 Zstop IR MOA-H Precision Long-Range Riflescope
Sightron
The Sightron SIII PLR 10-50x60 precision long-range riflescope is built for serious shooters who demand reliability and clarity at extreme distances without paying premium prices. This second focal plane scope delivers the adjustability and optical performance hunters and competition shooters expect, combining a wide magnification range with a robust 30mm tube and proven Sightron optics engineering.
Long-range shooting requires a scope you can trust in variable conditions. The SIII PLR features a new internal zero-stop mechanism that locks your baseline reference point with tactile, audible feedback—no more second-guessing zero after a hard hunt or match stage. The large, oversized tactical turrets are resettable and marked clearly for windage direction, making adjustments intuitive even with cold hands or gloves. You get 50 MOA of elevation and windage adjustment with precise 1/4 MOA clicks per revolution, giving you the range to dial from close cover to steel downrange. The side-focus system lets you dial parallax from 13 yards to infinity, keeping your reticle image sharp across your shooting window.
Sightron's exclusive Zact-7 Revcoat Plus lens coating maximizes light transmission for a brighter, clearer sight picture in low light—critical for early-morning and late-evening hunts. The illuminated MOA-H reticle uses a side-mounted 11-position dial powered by a standard CR2032 battery, giving you a bright aiming point when shadows matter. The scope is sealed, nitrogen-charged, and rated IPX 7 waterproof, so rain, mud, and rough handling won't compromise your zero. It ships complete with sunshade, lens caps, battery, and adjustment keys.
At 33.5 oz and 17.4 inches long on a 30mm body, the SIII PLR balances optical real estate with mounting simplicity. Whether you're glassing from a ridge or holding steady on a distant target, this scope delivers the long-range precision that made Sightron's PLR line a favorite among hunters and shooters who refuse to compromise on value.
| Magnification | 10-50x |
| Objective Lens Diameter | 60mm |
| Tube Diameter | 30mm |
| Eye Relief | 3.8-4.5 inches |
| Field of View | 9.6-2.2 ft @ 100 yards |
| Reticle Type | MOA-H IR (illuminated, second focal plane) |
| Click Value | 1/4 MOA @ 100 yards |
| Elevation Adjustment Range | 50 MOA @ 100 yards |
| Windage Adjustment Range | 50 MOA @ 100 yards |
| Adjustment Per Revolution | 20 MOA |
| Zero Stop | Yes (internal, resettable) |
| Parallax Focus | Side-focus, 13 yards to infinity |
| Illumination | Yes, 11-position dial (CR2032 battery included) |
| Waterproof Rating | IPX 7 |
| Fog Proof | Yes (nitrogen-filled) |
| Lens Coating | Zact-7 Revcoat Plus multi-coating |
| Finish | Satin black |
| Length | 17.4 inches |
| Weight | 33.5 oz |
| Included Accessories | 3-inch sunshade, flip-up lens caps, CR2032 battery, Torx key, Allen wrench |
The SIII PLR features a standard 30mm tube diameter, making it compatible with any modern rifle or action that accepts 30mm rings—this covers the vast majority of bolt-action hunting rifles, AR-platform rifles, and precision shooting platforms. Ensure your scope rings and base are rated for 30mm tube diameter.
The side-focus system adjusts parallax from 13 yards (minimum focus distance) to infinity, allowing you to dial out parallax error across the entire shooting range. This is especially useful for precision shooting at varying distances.
The reticle is powered by a standard CR2032 battery, which is included with the scope. Battery life depends on brightness setting and usage frequency, but CR2032 cells are inexpensive and widely available.
The internal zero-stop provides a tactile and audible positive stop at your zeroed elevation setting, allowing you to return to zero quickly after dialing for distance or wind. The turrets remain resettable for field zero verification or changes.