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 639 was the Export / Commercial version of the Model 629.




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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 Forge Mark Inside Carry Handle
Below Rear Sight.

See the Component Guide for a
listing of Forge Codes.


REAR SIGHT:
Standard "Late Production" A1 Sight


EJECTION PORT COVER:
"Late A1 Production" Type


FORWARD ASSIST:
NO Forward Assist

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BOLT GROUP:
Standard Colt Bolt Group



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HANDGUARD SLIP RING:
Flat
or
Delta / Tapered


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BARREL:
DIAMETER:
0.625" at the Front Sight Base

LENGTH:
14.5"

TWIST RATE:
1/12

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

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HANDGUARDS:
Carbine Handguard
with Single Heat Shield




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FLASHHIDER:
Early models were equipped with the
4.5" Moderator with "Grenade Ring"

Once the ATF regulated the 4.5" Moderator
in the mid 1970's, models were equipped
with the A1 "Birdcage"
RETRO BLACK RIFLE - CARBINE GUIDE - MODEL 639
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
setstats