Specifications for Sightron S-TAC 4-20x50 Riflescope:
| Magnification: | Range 4 - 20 x |
| Objective Lens Diameter: | 50 mm |
| Tube Diameter: | 30 mm |
| Finish: | Matte Black |
| Adjustment Click Value: | 0.25 MOA |
| Included Accessories: | Sightron Scope Coat |
| W/E Travel at 100 Yds: | Range W40 - E80 MRAD |
| Field of View: | Range 23.6 - 4.4 ft at 100 yds |
| Eye Relief: | Range 3.7 - 4 in |
| Length: | 14.8 in |
| Color: | Black |
| Exit Pupil: | 2.5 mm |
| Parallax: | 9 yds to infinity |
| Diopter Adjustment Range: | Range -2 - 1 dpt |
| Condition: | New |
| Reticle Focal Plane: | Second Plane |
| Optical Coating: | Zact-7 TM 7-Layer |
| Water Resistance Level: | Waterproof |
| Fogproof: | Yes |
Features of Sightron 4-20x50mm Tactical Riflescope S-TAC:
- Fast Focus Eyebell allows for quick and easy adjustments when in the field.
- S-TAC Target Turret. Precision adjustable target turret in 1/4 MOA adjustments. All models are resettable to zero and are protected by rugged windage and elevation caps.
- Zoom Ring Lever. A pop up style zoom ring lever for ease of use in cold weather climates.
- ExacTrack. This scope features Sightron's unique ExacTrack windage and elevation adjustment system.
- Zact-7 Revcoat Multi-Coating. Employs revolutionary lens coating technology featuring fully multi-coated precision ground glass.
- Waterproof. Rain, snow or humidity, Sightron optics are built using 100% sealed system ensuring a lifetime of performance in the most extreme environmental conditions.
- Shockproof. Rated for recoil and impact from even the toughest loads.
- Nitrogen Gas Charged. Nitrogen filled to provide a lifetime of use free from fogging and internal water buildup.