Marking on AR barrel

[dimon]

Hello. I have an AR with the following markings on its barrel: 'DSC 5.56 Nato 1:9'. The question is: who's the manufacturer of this barrel? Is it a Double Star? Thank you in advance.

 

[prproulx]

Usually you can get that info here but I don't see it on the list.

http://www.biggerhammer.net/ar15/barrelsbolts/

Dlask maybe??

 

[ramy98]

most likely double star corp..

http://www.ar15.com/lite/topic.html?b=3&f=118&t=303891