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This "Military Carbine Components Guide" will provide additional information
and photos of the various components used on the Military Carbines

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                                       BUTTSTOCKS

LATER/IMPROVED SOLID BODY
SCREW:
Short A1 screw, solid with no hole

BUTTPLATE:
Solid one piece rubber

SLING MOUNT:
In the later / improved version the
metal was plastic coated

BODY:
Solid construction

Used on the Model 605, and
Early Model 651 & 652

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1st GENERATION
ORIGINAL COLLAPSING BUTTSTOCK
Used exclusively on the Colt Model 607,
and was produced and fielded in very
limited numbers

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2nd GENERATION
COLLAPSING BUTTSTOCK
Used on the following Models:
609 / XM177E1
610 / XM177 / GAU-5A
619
620
629 / XM177E2
630
639
649 / GAU-5A/A
653
654

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3rd GENERATION
COLLAPSING BUTTSTOCK
Used on the Late Model 653

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HOLLOW BODY / TRAPDOOR
SCREW:
Short A1 screw, with hole

BUTTPLATE:
Solid one piece plastic

SLING MOUNT:
Fixed metal sling mount, attached
to the stock body with a screw

BODY:
Hollow storage compartment

Used on the Late Model 651 & 652

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                                     BUFFER GROUP

BUFFERS:

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SPRINGS:

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TUBES:

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                     LOWER RECEIVER

STYLES:
"PARTIAL FENCE"

"FULL FENCE"

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TAKEDOWN / PIVOT PINS:

TAKEDOWN & PIVOT PINS
WITH "DIVOTS":

TAKEDOWN & PIVOT PINS :

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SELECTORS:
ORIGINAL WITH "DIVOTS"

MID-PRODUCTION SELECTOR

CURRENT

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BOLT CATCH / RELEASE:

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MAGAZINE RELEASE:

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                     UPPER RECEIVER

REAR SIGHTS:

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EJECTION PORT COVERS:

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                         BOLT GROUP

CARRIER/KEY:

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FIRING PINS

MODIFIED LIGHT FLAT HEAD:

CURRENT ROUND HEAD:

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BOLTS:

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                   CHARGING HANDLES

LATER STYLE:

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              HANDGUARD SLIP RINGS

ORIGINAL FLAT / STRAIGHT:

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LATER TAPERED:

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                             BARREL

DIAMETER:

LENGTH:

TWIST RATE:

MARKINGS:

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                        HANDGUARDS

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                   FRONT SIGHT BASES

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                         FLASHHIDERS
IMPROVED 3 PRONG:

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A1 BIRDCAGE:

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CONICAL HIDER:

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3.5" MODERATOR

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4.5" MODERATOR

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RETRO BLACK RIFLE - CARBINE GUIDE - COMPONENT GUIDE