Description
Own a strong piece of Vietnam War-era machine gun mount documentation with this Technical Manual TM 9-1005-209-24P for the .50 Cal M55 Machine Gun Mount, dated July 1972. This manual is tied to the famous M55 Quad .50 system, one of the most visually recognizable heavy machine gun mounts of the Cold War and Vietnam War period.
The supplied FSN 1005-673-4750 corresponds to the modern NSN format 1005-00-673-4750. Public stock-number data identifies it as a trailer-mounted machine gun mount, with the item description listing Cal. .50; M55 model number.
Historical Significance
The M55 Machine Gun Mount is best known as the trailer-mounted Quad .50 system. It carried the kind of battlefield presence collectors immediately recognize: four .50 caliber Browning machine guns in a powered mount.
Official Army history describes Vietnam-era gun trucks equipped with M55 quad .50-caliber machine guns. It notes that the M55 used four .50-caliber machine guns, operated electronically, with a single gunner firing all four in tandem. The same account places the M55 in the world of armored convoy-security gun trucks, one of the most iconic vehicle-modification stories of the Vietnam War.
That gives this manual excellent collector appeal. It is not just a parts document for a mount. It is tied to Quad .50 gun trucks, convoy defense, perimeter security, and the heavy firepower used to protect supply routes in Vietnam.
The M55 Quad .50 Connection
The M55 was part of the broader multiple .50 caliber machine gun mount family. Earlier Army technical manual material identifies the M55 trailer mount with the M45C multiple .50 caliber machine gun mount and the M20 machine gun mount trailer. That publication also shows the M55 alongside related M45D and M45F multiple .50 caliber mount systems.
That is the “cool factor” of this manual. The M55 sits at the center of a highly collectible subject area:
- Quad .50 machine gun mounts
- Vietnam War gun trucks
- M45 / M55 mount history
- .50 caliber Browning support systems
- Cold War convoy-defense equipment
- U.S. Army ordnance maintenance documentation
For collectors, anything tied to the M55 Quad .50 has strong display and reference value.
What This Manual Covers
As TM 9-1005-209-24P, this publication belongs to the parts and support side of the M55 technical manual family. It is especially useful for collectors who want the maintenance and component documentation behind the mount.
This manual is especially relevant for:
- M55 Machine Gun Mount documentation
- Quad .50 mount reference
- FSN / NSN research for 1005-673-4750
- Vietnam War gun truck collections
- M45 and M55 mount research
- .50 caliber Browning support-equipment displays
- U.S. Army ordnance technical manual libraries
- museum and archival reference collections
Manuals like this help preserve the system behind the famous display piece. They document how the Army cataloged, supported, and maintained the equipment.
Key Features
- Technical Manual TM 9-1005-209-24P
- Covers the .50 Cal M55 Machine Gun Mount
- Dated July 1972
- Listed with FSN 1005-673-4750
- Modern NSN reference: 1005-00-673-4750
- Strong Vietnam War / Cold War machine gun mount subject
- Connected to the famous M55 Quad .50
- Great reference for gun truck, convoy security, and support-equipment collections
- Desirable manual for .50 caliber Browning and ordnance collectors
- Excellent fit for museum, archive, and technical manual libraries
Why This Collectible Stands Out
The M55 Quad .50 has a reputation that few machine gun mounts can match. It looked intimidating, sounded unmistakable, and became closely associated with Vietnam War convoy security.
This manual stands out because it documents the support side of that system. It belongs with M55 gun truck displays, M45 Quadmount references, .50 caliber Browning collections, Vietnam War transportation material, and Cold War ordnance libraries.
For collectors, the July 1972 date is also interesting. It places the manual at the end of the Vietnam War-era documentation cycle, when the M55 had already earned its place in convoy and fire-support history.
About This Manual
This listing is for Technical Manual TM 9-1005-209-24P, covering the .50 Cal M55 Machine Gun Mount, dated July 1972, with FSN 1005-673-4750.
This listing is for the manual only unless otherwise stated. No machine gun mount, trailer, weapon, firearm, ammunition, tools, repair parts, storage case, or additional accessories are included unless specifically shown or noted.
Ideal For
This manual is a strong fit for:
- Vietnam War technical manual collections
- M55 Quad .50 reference libraries
- M45 / M55 machine gun mount collectors
- Vietnam gun truck displays
- .50 caliber Browning support-equipment collections
- U.S. Army ordnance publication libraries
- museum and archival reference collections
- serious machine gun mount and convoy-security historians
Approx length 11", Approx width 8", Approx height .5", Approx weight 1.5lbs.
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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