Description
Add a specialized piece of Cold War armored vehicle weapons documentation to your collection with this Technical Manual TM 9-1005-231-34 for the .50 Cal M85 Machine Gun. Dated July 1964, this manual covers higher-level maintenance for the M85, a compact .50 caliber machine gun developed for armored vehicle cupola use.
Reference listings identify this manual as a Direct Support and General Support Maintenance Manual with Repair Parts and Special Tool Lists for the Machine Gun, Caliber .50, Fixed, M85, dated July 7, 1964.
Historical Significance
The M85 Machine Gun was designed for a very specific Cold War role: protected .50 caliber firepower from inside an armored vehicle cupola. Unlike the more familiar M2HB flexible machine gun, the M85 was a fixed cupola weapon built around vehicle installation and crew protection.
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 had both high and low rate-of-fire settings.
The M85 is closely associated with the M60-series tank family and the M19 commander’s cupola. AFV reference data lists the .50 Cal M85 machine gun mounted in the M19 cupola on the M60A1 turret, with 360-degree manual traverse and elevation from -10 degrees to +54 degrees.
The M85 Machine Gun
The M85 was not a general-purpose infantry machine gun. It was made for armored vehicle use, where compact size, protected operation, and cupola integration mattered.
Army documentation lists several important M85 features, including:
- short receiver assembly
- fixed headspace
- quick-change barrel with flash suppressor
- right- and left-hand feed capability
- manual and electrical firing capability
- high and low rate-of-fire selection
The same Army reference notes that left-hand feed was used on M60, M60A1, and M60A3 tanks as well as M728 vehicles.
For collectors, that makes this manual a focused reference for the armored vehicle side of .50 caliber machine gun history.
What This Manual Covers
As TM 9-1005-231-34, this publication would have served as a direct support and general support maintenance reference for the M85 machine gun.
This manual is especially relevant for:
- M85 Machine Gun documentation
- .50 caliber fixed machine gun maintenance reference
- M60-series tank cupola research
- M728 armored vehicle weapons reference
- Cold War armored vehicle technical manual collections
- repair parts and special tools research
- direct support and general support maintenance displays
- museum and archival reference libraries
- collectors completing an M85 technical manual set
Later Army documentation continued to identify the M85 as Machine Gun, Caliber .50, Fixed, M85, under NSN 1005-00-690-2790, showing the continued support trail for this weapon family.
Key Features
- Technical Manual TM 9-1005-231-34
- Covers the .50 Cal M85 Machine Gun
- Dated July 7, 1964
- Direct Support and General Support maintenance subject
- Includes repair parts and special tools list context
- Connected to armored vehicle cupola-mounted .50 caliber systems
- Associated with M60-series tanks and M728 vehicles
- Strong Cold War armored vehicle collector appeal
- Useful reference for M85, M19 cupola, M60 tank, and .50 caliber machine gun collectors
Why This Manual Matters
The M85 represents a focused chapter in Cold War armored vehicle design. It gave tank and armored vehicle crews protected .50 caliber firepower from inside a commander’s cupola.
This manual preserves the support and maintenance side of that system. It is not a general small-arms guide. It is official Army technical documentation for a specialized armored vehicle machine gun.
For collectors, it pairs well with M60 tank manuals, M85 operator manuals, M19 cupola documentation, M728 vehicle references, .50 caliber ammunition displays, and Cold War armor collections.
About This Manual
This listing is for Technical Manual TM 9-1005-231-34, covering the .50 Cal M85 Machine Gun, dated July 1964.
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.
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