The Sightron SIII PLR 10-50x60 Zero Stop is a Second Focal Plane precision long-range riflescope designed for serious target shooting at extended distances. The internal zero-stop mechanism provides a tactile and audible positive stop for repeatable zero retention, while the large resettable tactical turrets deliver 20 MOA per revolution and 50 MOA of total elevation and windage travel in crisp 1/4 MOA increments.
The illuminated MOA-2 IR reticle is uncluttered and easy to read at any magnification, with an 11-position side-mounted illumination dial powered by a CR2032 battery. Sightron's patented ExacTrack erector system maintains consistent point of pressure at zero and at the extremes of adjustment, eliminating drift entirely. Zact-7 Revcoat Plus multicoating across every lens surface maximises light transmission and colour fidelity, while the redesigned side focus system achieves a close minimum parallax of just 13 yards. The 30mm aluminium tube meets IPX7 waterproof standards and is nitrogen charged against fogging.
| Magnification | 10–50x |
| Objective Lens Diameter | 60mm |
| Eye Relief | 3.8–4.5 inches |
| Field of View | 9.6–2.2 ft @ 100 yards |
| Tube Size | 30mm |
| Turret Style | Tactical, Resettable |
| Zero Stop | Yes |
| Click Value | 1/4 MOA |
| MOA Per Revolution | 20 MOA |
| Max Elevation Adjustment | 50 MOA |
| Max Windage Adjustment | 50 MOA |
| Parallax Setting | 13 yards – Infinity |
| Focus Type | Adjustable Side Focus |
| Reticle Type | MOA-2 IR |
| Focal Plane | Second Focal Plane |
| Illumination | Yes – 11 Intensity Levels |
| Finish / Color | Satin Black |
| Waterproof | Yes – IPX7 Rated |
| Anti-Reflection Tech | Zact-7 Revcoat Plus Multicoatings |
| Fog Proof | Yes |
| Length | 17.4 inches |
| Weight | 33.5 ounces |
