HISTORY / BACKGROUND:
Developed by Colt in the late 1960s, it was the first short stroke piston AR15.

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BUTTSTOCK:
STYLE:
Unique A1 solid stock with slotted sling accomodations.


BUTTPLATE:
Solid rubber

SWIVEL:
None
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BUFFER GROUP:
BUFFER:



SPRING:
Rifle


TUBE:

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LOWER RECEIVER:
STYLE:
A1 Full Fence


MARKINGS:


SELECTOR:
Later Style

TAKEDOWN / PIVOT PINS:
Later Style

BOLT CATCH/RELEASE:
Later Style

MAGAZINE RELEASE BUTTON:
Later style with Circles
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UPPER RECEIVER:

Unusual handle less design

PROOF MARKS / FORGE CODE:
None





EJECTION PORT COVER:
Non reinforced Port Cover or Small Rectangle Port Cover

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BOLT GROUP:
CARRIER & KEY:
Uniquely designed for Piston

BOLT:

FIRING PIN:
Later Lightened firing
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CHARGING HANDLE:
STYLE:
Uniquely Designed charging handle to work with Special bolt carrier and carrier key

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HANDGUARD SLIP RING:
STYLE:
None (Handguards held on by straps)

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BARREL:
DIAMETER:
0.625" at the Front Sight Base

LENGTH:
20"

TWIST RATE:
12:1
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HANDGUARDS:
STYLE :
Uniquely designed for the Colt 703 to cover barrel and gas piston system

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FRONT SIGHT BASE:
STYLE:
Uniquely designed for the 703 to accommodate the gas piston system

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FLASHHIDER:
STYLE:
A1 birdcage


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RETRO BLACK RIFLE - PROTOTYPE GUIDE - COLT PROTOTYPE 703
setstats
.223 Cal / 5.56mm
PROTOTYPE
RIFLE
GUIDE
ArmaLite AR15
Colt 703
Colt 645
M16A1E1