Restore your artillery optics with authenticity using this original M39C Instrument Light, designed for use with the M70 series of telescopes. The U.S. military issued these lights to provide critical reticle illumination for direct fire telescopic sights used on a variety of mid-20th-century American artillery systems. Perfect for collectors, restorers, and reenactors seeking genuine period components.
Key Features:
Authentic U.S. Military Surplus – Not a reproduction. These are original-issue M39C lights as used in field service.
Designed for M70 Series Telescopes – Compatible with M70C, M70D, M70F, and M70R models.
Illuminates Reticle for Night Operations – Powered by standard 3V flashlight cells (two in series), these lights clamp onto the reticle window, enabling low-light sighting conditions.
Includes Adjustable Clamp and Eyebolt – Integral hardware secures the unit to the telescope for stable, consistent operation during use or display.
Ideal for Restoration Projects – These lights complete a proper restoration of the M70 series telescopes and related equipment. See photos for overall condition.
Used On the Following Guns and Mounts:
M70C: 75mm Howitzer, Mount M7
M70D: 37mm Gun, Mount M23A1
M70F: 75mm Gun, Mounts M34/M34A1
M70R: 75mm Howitzer, Mount M12 (used on landing vehicle Mark5)
Units are in surplus condition and may show signs of storage or handling wear. Please refer to the listing images for the general condition. These are original parts and may require cleaning or servicing to function. Condition
See photos for overall condition. Units may show signs of storage or light handling consistent with original military surplus.
Pictures are stock images of our inventory. Unless otherwise noted, you will not be receiving the exact item shown in the pictures. The pictures are representative of the item's general condition. The item you receive might be slightly better, or worse, condition than was shown in the pictures.
Please visit our page about order lead times here: Order Lead Times