
One pipe is sights outside profile CNC machining, placket, the middle button, after the cylinder shell, connected into a whole profile, a lot of time turning (some sights will choose a stamping), not relying on the thread splicing.
| Model | BM5010BSFIR |
| Specification | 4 - 16×50SFIR |
| Magnification | 4 - 16 |
| Objective lens diameter (mm) | 50 |
| Field of view at 100 yds(ft) | 29.33 - 7.48 |
| Exit pupil (mm) | 12.5 - 3.1 |
| Eye relief (mm) | 92 - 90 |
| Click (in) 100yds | 0.125 |
| Tube Dia (mm) | 30 |
| Length (mm) | 377 |
| Weight (g) | 944 g |
| Lens Coating | Fully Multi |
| Reticle | Mil-Dot (Customize) |
| Reticle Texture | Optical glass |
| Lighting system | Red |
| Battery | CR2(3V) |
| weather proof | Yes |
| Waterproof | Yes |
| Nitrogen filled | Yes |
| Focus system | Side Focus |