AR barrel id

[LT]

Looking to id my ar barrel. An info would be appreciated. These r the only markings I can find. Hope they help.

 

[Red Dawn]

I think early colts had vp mark in an upside down triangle


Click Here

 

[jeep78]

Colt verified proof mark.
If no other marks, looks to be an early non chrome lined one in twelve twist barrel. Made in the sixties.

 

[Spas-12 Owner]

Another vote for early Colt AR, 1x12 twist

 

[LT]

Thanks for the info!