Please click here to visit the "Military Rifle Components Guide" for
additional info and photos of the various components used on this model.
HISTORY / BACKGROUND:
The Colt Model 606 HBAR was the first AR-15/M-16 model developed with a full length heavy barrel.  The
barrel is not tapered like later controversial M16A2 barrels.
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BUTTSTOCK:
STYLE:
Later / Improved Solid Body
Type D


BUTTPLATE:
Solid Rubber



SWIVEL:
Pinned, Metal with
Plastic Covering


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BUFFER GROUP:
BUFFER:
Unique Plastic Rifle Buffer


SPRING:
Standard Rifle Spring


TUBE:
Original Tube,
No wrench flats,
Hole in tube at receiver
end to tighten tube
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LOWER RECEIVER:
STYLE:
"Partial Fence"

MARKINGS:
Colt Logo
COLT AR-15
MOD.  06
CAL. 5.56 MM.
Serial XXXXXX




SELECTOR:
"Later"


TAKEDOWN / PIVOT PINS:
"Later" Pins


BOLT CATCH/RELEASE:
"Latter" with Raised/Grooved End
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UPPER RECEIVER:
PROOF MARKS / FORGE CODE:
Colt Proof Marks - Triangle & Square with "C"
Located in front of ejection port
No Forge Code


REAR SIGHT:



EJECTION PORT COVER:
"Later" with " Rectangular Plate"
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BOLT GROUP:
CARRIER:
Parkerized with Forward Assist Serrations

BOLT:
Chrome or Parkerized

FIRING PIN:
Improved Light Flat Head


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CHARGING HANDLE:
Current Improved Design







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HANDGUARD SLIP RING:
Flat





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BARREL:
DIAMETER:
0.750" at the Front Sight Base

LENGTH:
20"

TWIST RATE:
1/12

MARKINGS:


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HANDGUARDS:
Standard Triangular





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FRONT SIGHT BASE:
STYLE:
Forged


MARKINGS:
None







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FLASHHIDER:
Improved 3-Prong
RETRO BLACK RIFLE - RIFLE GUIDE - MODEL 606
setstats
.223 Cal / 5.56mm
MILITARY RIFLE
GUIDE
Military Rifle
Components Guide
Colt Model 601
Colt Model 602
Colt Model 603 /
XM16E1
Other M16A1
Manufacturers
Colt Model 604 /   
USAF M16
Colt Model 603
M16A1
Colt Model 606
HBAR
Photo courtesy of tgus
Photo courtesy of tgus
Photo courtesy of tgus
Photo courtesy of
tgus
Photo courtesy of tgus
Photo courtesy of tgus