Please click here to visit the "Military Carbine Components Guide" for
additional info and photos of the various components used on this model.
HISTORY / BACKGROUND:
The Colt Model 629 was fielded by the US Military during the Vietnam Conflict. It was used by the US
Army and other Special Operations Forces to include the USN SEALs. The Military designation for it
was XM177E2. This Carbine had a number of changes/improvements made to it over its predecessor
the Model 609 / XM177E1, which included lengthening the barrel and making changes the moderator.

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BUTTSTOCK:
STYLE:
2nd Generation Collapsing Stock

MATERIAL:
Aluminum Body coated with Vinyl-Acetate


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BUFFER GROUP:
BUFFER:
Standard Carbine Buffer

SPRING:
Standard Carbine Spring

TUBE:
2-Position Tube

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LOWER RECEIVER:
STYLE:
Full Fence

MARKINGS:





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UPPER RECEIVER:
PROOF MARKS / FORGE CODE:
Colt Proof Marks in front of the Ejection Port Cover




REAR SIGHT:
Standard "Late Production" A1 Sight




EJECTION PORT COVER:
"Late A1 Production" Type




FORWARD ASSIST:
"Original" Tear Drop Assist




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BOLT GROUP:
Standard Colt Bolt Group
Unmarked Bolt Carrier
"MP" marked Bolt

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HANDGUARD SLIP RING:
Delta / Tapered




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BARREL:
DIAMETER:
0.625" at the Front Sight Base

LENGTH:
11.5"

TWIST RATE:
1/12

MARKINGS:
C MP C
M = Magnetic Particle Inspected
P = Proof Fired
C = Chrome Chamber

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HANDGUARDS:
Carbine Handguard
with Single Heat Shield




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FLASHHIDER:
4.5" Moderator

Later Models were also equipped
with a "Grenade Ring"






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                COLT MODEL 629 / US ARMY XM177E2  - "IN THE FIELD"
RETRO BLACK RIFLE - CARBINE GUIDE - MODEL 629
Colt Model 605
.223 Cal / 5.56mm
MILITARY CARBINE
GUIDE
Colt Model 607
Colt Model 608
Colt Model 609
XM177E1
Colt Model 610
XM177
Colt Model 619
& 620
Colt Model 629
XM177E2
Colt Model 630
USAF GAU-5A
Colt Model 639
Colt Model 649
USAF GAU-5A/A
Colt Model 651
& 652
Colt Model 653
& 654
Military Carbine
Components Guide
US Air Force
Carbine Guide
Unknown Date - Vietnam
Montanyard working with US Army SOG
Unknown Date - Vietnam
US Army SOG
Unknown Date - Vietnam
US Army SOG
Unknown Date - Vietnam
US Army SOG
Unknown Date - Vietnam
USN SEAL
Model 629 with XM148 and 50 Round Mag
setstats