SIGHT UNIT M53 SERIES：DETAILS
| P/N | NSN | |
| SIGHT UNIT：M53 | 8245971 | 1240-00-856-9452 |
| SIGHT UNIT：M53A1 | 10559698 | 1240-01-383-0165 |
RELATED PRODUCTS：
| P/N | NSN | |
| TELESCOPE MONUT：M128 | 8245970 | 1240-00-823-5613 |
| TELESCOPE MONUT：M128A1 | 10559699 | 1240-00-181-4806 |
| TELESCOPE ELBOW ：M109 | 8588780 | 1240-00-823-5612 |
