Description
Technical Manual (TM 9-1005-231-25) for .50cal M85 Machine Gun September 1968 FSN 1005-690-2790
Add a specialized piece of Vietnam War-era / Cold War armored vehicle weapons documentation to your collection with this Technical Manual TM 9-1005-231-25 for the .50 Cal M85 Machine Gun. Dated September 1968, this manual is tied to the fixed .50 caliber machine gun used in armored vehicle cupola installations.
Historical Significance
The M85 Machine Gun was developed for a very specific Cold War role: protected .50 caliber firepower from inside an armored vehicle cupola. Unlike the familiar M2HB flexible machine gun, the M85 was a fixed .50 caliber machine gun designed around vehicle-mounted operation.
Official Army operator documentation describes the M85 as a recoil-operated machine gun designed for cupola mounting in armored vehicles. It could be fired electrically by solenoid or manually, and it offered both high and low rates of fire. It also featured a short receiver assembly, fixed headspace, and quick-change barrel with flash suppressor.
That makes this manual a strong reference for collectors of M60-series tanks, M728 vehicles, tank commander’s cupolas, Cold War armored vehicle weapons, and .50 caliber machine gun documentation.
The M85 Machine Gun
The M85 was closely associated with armored vehicles such as the M60, M60A1, and M60A3 tanks, as well as the M728 Combat Engineer Vehicle. Army operator documentation notes that the M85 had both right- and left-hand feed capability, with left-hand feed used on M60-series tanks and M728 vehicles.
This gives the manual strong collector appeal because it documents a machine gun built for a specific armored vehicle environment. It is part of the same broader story as the M19 commander’s cupola, protected tank crew stations, and Cold War .50 caliber vehicle armament.
For armor collectors, the M85 represents the more specialized side of heavy machine gun use. It was not a general infantry tripod gun. It was a tank cupola weapon tied directly to armored vehicle crew protection and vehicle defense.
What This Manual Covers
As TM 9-1005-231-25, this publication served as a support-level technical manual for the .50 Cal M85 Machine Gun. Reference listings identify this September 1968 manual as an Organizational, Direct Support, General Support, and Depot Maintenance Manual Including Repair Parts and Special Tools List for the Machine Gun, Caliber .50, M85, listed at 68 pages with 22 illustrations.
This manual is especially relevant for:
- M85 Machine Gun maintenance documentation
- FSN 1005-690-2790 / NSN 1005-00-690-2790 reference
- M60-series tank cupola research
- M728 armored vehicle weapons reference
- .50 caliber fixed machine gun documentation
- Cold War armored vehicle technical manual collections
- repair parts and special tools list research
- collectors completing an M85 technical manual set
Key Features
- Technical Manual TM 9-1005-231-25
- Covers the .50 Cal M85 Machine Gun (FSN 1005-690-2790)
- Dated September 23, 1968
- Organizational, Direct Support, General Support, and Depot Maintenance subject
- Includes repair parts and special tools list context
- Connected to armored vehicle cupola-mounted .50 caliber machine gun systems
- Strong Vietnam War-era / Cold War armor collector appeal
- Useful companion piece for M85, M60-series tank, and M728 vehicle reference collections
Why This Manual Matters
The M85 represents a focused chapter in Cold War armored vehicle armament. It was designed to give tank and armored vehicle crews .50 caliber firepower from a protected cupola position. That makes it an important subject for collectors who study the complete weapon systems fitted to U.S. armored vehicles.
This manual preserves the official maintenance and parts-support side of that system. It is not a commercial guide or general history booklet. It is part of the Army technical publication trail for a specialized .50 caliber machine gun used in armored vehicle service.
For collectors, it pairs well with M60 tank manuals, M728 vehicle references, M19 cupola documentation, M85 operator manuals, .50 caliber ammunition displays, and Cold War armor collections.
About This Manual
This listing is for Technical Manual TM 9-1005-231-25, covering the .50 Cal M85 Machine Gun, dated September 1968, with FSN 1005-690-2790.
This listing is for the manual only unless otherwise stated. No machine gun, firearm, receiver, barrel, cupola, tank, armored vehicle, ammunition, belts, links, tools, repair parts, storage case, or additional accessories are included unless specifically shown or noted.
Ideal For
This manual is a strong fit for:
- M85 Machine Gun collectors
- M60, M60A1, and M60A3 tank reference collections
- M728 armored vehicle displays
- Cold War U.S. Army technical manual collections
- .50 caliber machine gun documentation libraries
- tank cupola and armored vehicle weapon research
- repair parts and special tools manual collectors
- museum and archival reference displays
Approx length 10", Approx width 8", Approx height .5", Approx weight 1lbs.
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.
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