Description
Technical Manual (TM 9-1005-231-10) for M85 Machine Gun May 1974
Add a specialized piece of Cold War U.S. armored vehicle weapons documentation to your collection with this Technical Manual TM 9-1005-231-10 for the M85 Fixed .50 Caliber Machine Gun. This manual is dated May 1974 and covers the operator-level use and maintenance of the M85, a compact .50 caliber machine gun designed for armored vehicle cupola use.
Historical Significance
The M85 Machine Gun is closely tied to the Cold War tank era. It was developed as a fixed .50 caliber machine gun for armored vehicle cupola installations, giving tank crews protected heavy machine gun capability against enemy ground troops and low-flying aircraft. The Army manual describes the M85 as a fixed .50 caliber machine gun intended to provide protection for armored vehicle crews.
The M85 is especially associated with the M60 tank family and related armored vehicles. The manual notes that left-hand feed was used on M60, M60A1, and M60A3 tanks, as well as M728 vehicles.
For collectors, this manual connects directly to the armored vehicle crew station, not just the weapon itself. The M60’s large commander’s cupola allowed the .50 caliber weapon to be aimed, fired, and reloaded from under armor, giving the tank commander a protected machine gun position.
The M85 Machine Gun
The M85 was built for a very specific job. It was not a standard infantry heavy machine gun. It was designed for armored vehicle use, with features suited to a cupola-mounted weapon system.
The Army manual describes the M85 as a recoil-operated machine gun designed for cupola mounting. It could be fired electrically by solenoid or manually, and it offered both high and low rates of fire. The manual also notes its short receiver assembly, fixed headspace, quick-change barrel, and flash suppressor.
Those details make the M85 an interesting subject for collectors of M60 tanks, M728 combat engineer vehicles, Cold War armor, tank machine gun systems, and .50 caliber ordnance manuals.
What This Manual Covers
As an operator’s manual, TM 9-1005-231-10 was written for personnel responsible for operating and maintaining the M85 at the user level.
This manual is especially relevant for:
- M85 Machine Gun operator documentation
- M60 / M60A1 / M60A3 tank cupola reference
- M728 armored vehicle weapons reference
- Cold War armored vehicle collections
- .50 caliber machine gun manual collections
- museum and archival reference libraries
- collectors completing an M85 technical manual set
The manual includes sections covering equipment description, major components, operating instructions, preventive maintenance checks and services, operation under usual and unusual conditions, maintenance procedures, ammunition, references, basic issue items, additional authorization items, and expendable/durable supplies.
Key Features
- Technical Manual TM 9-1005-231-10
- Covers the M85 Fixed .50 Caliber Machine Gun
- Dated May 1, 1974
- Associated NSN: 1005-00-690-2790
- Operator-level Army technical manual
- Designed for armored vehicle cupola mounting
- Covers electrical and manual firing reference
- Includes high and low rate-of-fire context
- Connected to M60-series tanks and M728 vehicles
- Strong Cold War armor and .50 caliber machine gun collector appeal
Why This Manual Matters
The M85 represents a very specific part of Cold War armored vehicle design. It gave the tank commander access to .50 caliber firepower from a protected cupola position, tying the weapon directly to the crew survivability and defensive armament of vehicles like the M60 series.
This manual preserves the official Army operator-level documentation for that system. It is not a commercial guide or general history booklet. It is military technical paperwork for the weapon’s use, inspection, maintenance, ammunition reference, and basic support items.
For collectors, it pairs well with M60 tank manuals, M85 machine gun parts references, M19 cupola documentation, .50 caliber ammunition displays, Cold War armor collections, and U.S. Army technical manual libraries.
About This Manual
This listing is for Technical Manual TM 9-1005-231-10, covering the M85 Machine Gun, dated May 1974.
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 tank and M728 vehicle reference collections
- Cold War U.S. Army technical manual collections
- .50 caliber machine gun documentation libraries
- armored vehicle crew station displays
- tank cupola and turret research collections
- museum and archival reference displays
- collectors completing an M85 technical manual set
Approx length 6", Approx width 4", Approx height .25", Approx weight .5lbs.
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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