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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