The M139 Alignment Device provides a close-in optical reference to check
the boresight of the fire control at the weapon site.
Classification. The Alignment Device is used to provide an on-carriage optical reference to periodically check the boresight setting of the fire control system.
M139. This Alignment Device is intended to support the M198 Howitzer. and uses tritium.
Classification. The Alignment Device is used to provide an on-carriage optical reference to periodically check the boresight setting of the fire control system.
M139. This Alignment Device is intended to support the M198 Howitzer. and uses tritium.
| TAMCN | N/A |
| EQUIPMENT ID NUMBER | |
| EQUIPMENT NAME, MODEL, TYPE | M139 ALIGNMENT DEVICE |