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Colt CAR-15 Commando (XM177)


Assault Carbine / Submachine Gun (SMG)


United States | 1966



"The Colt AR-15 Commando assault carbine represented a handier, Close-Quarters-minded version of the original full-length Colt M16 assault rifle."



Authored By: Staff Writer | Last Edited: 02/15/2019 | Content ©www.MilitaryFactory.com | The following text is exclusive to this site; No A.I. was used in the generation of this content.
The Colt CAR-15 Commando (XM177) was an assault carbine developed during the United States military involvement in the Vietnam War (1955-1975) to fulfill a need for a portable, close-in weapon system for use by special forces operating in the jungle. It appeared in 1966 and was based on the classic ArmaLite AR-15 which laid the foundation for the ubiquitous M16 assault rifle in U.S. service. The Commando retained use of the same intermediate 5.56x45mm NATO rifle cartridge as the M16 and fed from similar 20- and 30-round STANAG magazines. However, the Commando was a more compact weapon with an overall length of 32.5 inches (collapsible to 29.8 inches via a telescoping shoulder stock), a 10-inch long barrel and manageable weight of 5.35lbs. Despite its assault rifle roots and its carbine functionality in-the-field, the U.S. military classified the weapon as a Submachine Gun (SMG). The original weapon was known to Colt as "Model 610" and adopted by the U.S. Army as the developmental "XM177" (XM177E1 and XM177E2) while also being known as the CAR-15 "Commando". The United States Air Force took on stocks of the weapon as the "GAU-5/A".

The Commando retained much of the form and function of the AR-15/M16 lines though the shorter barrel assembly and telescoping shoulder stock effected accuracy somewhat. A special muzzle component was designed to retard muzzle flash as well as suppress the exiting action though the Commando was far from a "silenced" weapon. Nevertheless, its handy proportions made for a compact weapon where and when it was needed.

The United States Army contracted for over 2,800 of this special weapons system from 1966 onwards. After some time in-the-field, lessons with the new weapon were learned and Colt responded to reports with a longer barrel of 11.5 inches which aided accuracy and noise reduction some. The longer barrel also added support for the XM148 Under Barrel Grenade Launcher (UBGL) unit to broaden the warfighter's tactical value. The revised Commando was Colt's Model 629 and Model 649, these differentiated by the 649's lack of a forward-assist feature. Over 500 of the new weapons were then acquired by the Army (as XM177E2) from 1967 onwards.

The Commando was in production until 1970 and the U.S. involvement in Vietnam ended in 1975. However, the Commando soldiered on in the post-war world with some units still in use across South America in the various regional conflicts and civil wars there. Additional service saw them fielded with Israel during the Yom Kipper War.

The modern M4 Carbine went on to replace the Commando in the same assault carbine role during the 1980s and has gone on to see much more widespread service since.

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Physical
The physical qualities of the Colt CAR-15 Commando (XM177). Information presented is strictly for general reference and should not be misconstrued as useful for hardware restoration or operation.
826 mm
32.52 in
O/A Length
292 mm
11.50 in
Barrel Length
5.36 lb
2.43 kg
Weight
Semi/Full Auto; Gas Operated; Locking Bolt
Action
5.56x45mm M193
Caliber(s)
20- or 30- round detachable box
Feed
Iron Front and Rear
Sights
Performance
Performance specifications presented assume optimal operating conditions for the Colt CAR-15 Commando (XM177). Information presented is strictly for general reference and should not be misconstrued as useful for hardware restoration or operation.
750
Rounds-Per-Minute
Rate-of-Fire
2,750 ft/sec
838 m/sec
Muzzle Velocity
Variants
Notable series variants as part of the Colt CAR-15 Commando (XM177) Assault Carbine / Submachine Gun (SMG) family line.
CAR-15 "Colt Commando" (XM177) - Base Series Designation
Operators
Global customers who have evaluated and/or operated the Colt CAR-15 Commando (XM177). Nations are displayed by flag, each linked to their respective national small arms listing.

Contractor(s): Colt Industries - USA
National flag of Israel National flag of Malaysia National flag of the Philippines National flag of the United States

[ Israel; Malaysia; Philippines; United States ]
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Image of the Colt CAR-15 Commando (XM177)
Image courtesy of the United States Department of Defense imagery database.
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Image of the Colt CAR-15 Commando (XM177)
Image courtesy of the United States Department of Defense imagery database.
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Image of the Colt CAR-15 Commando (XM177)
Image courtesy of the United States Department of Defense imagery database.
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Image of the Colt CAR-15 Commando (XM177)
Image courtesy of the United States Department of Defense imagery database.

Design Qualities
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SPECIAL FORCES
Recognition
Some designs stand the test of time while others are doomed to never advance beyond the drawing board; let history be their judge.
Going Further...
The Colt CAR-15 Commando (XM177) Assault Carbine / Submachine Gun (SMG) appears in the following collections:
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