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| Model | BN31240SF |
| Specification | 3 - 12x 40 |
| Magnification | 3 - 12 |
| Objective lens diameter (mm) | 40 |
| Field of view at 100 yds(ft) | 27.30 - 7.35 |
| Exit pupil (mm) | 13.0 - 3.2 |
| Eye relief (mm) | 105 - 95 |
| Click (in) 100yds | 0.25 |
| Tube Dia (mm) | 25.4 |
| Length (mm) | 340 |
| Weight (g) | 500g |
| Lens Coating | Fully Multi |
| Reticle | (Customize) |
| weather proof | Yes |
| Waterproof | Yes |
| Nitrogen filled | Yes |
| Focus system | Side Focus |