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11/22/2017 10:05:29 PM
Posted: 10/8/2004 10:41:38 PM EST
When was the last time Colt made A1 profile chromelined 1/12 barrels with original 3 prong FH?

Cause I bought one and have no idea how old it is.
Link Posted: 10/8/2004 11:28:19 PM EST
Three prongs (as far as I know) were phazed out about 1969.
Then they went to the birdcage style.
Link Posted: 10/8/2004 11:31:08 PM EST

Originally Posted By Gunslinger808:
Three prongs (as far as I know) were phazed out about 1969.
Then they went to the birdcage style.



I understand the switch took place with the implementation of the M16A1, but I was wondering as far as the civie market goes...maybe the guy I bought it off of got it from an SP1?....
Link Posted: 10/9/2004 2:21:39 AM EST
[Last Edit: 10/9/2004 2:24:23 AM EST by Gunslinger808]
Civilian ARs back then were made from the exact same parts as the military, only difference as far as I know was the fire control group.
SP1s were just A1s without the select fire parts.
More than likely, it is a SP1 barrel.
If you haven't already, check this site out:
www.biggerhammer.net/ar15/
Lots of info on cut off dates, weapon profiles, and more.
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