AI AX308 barrel identification

[ipsullivan]

Hello,

Trying to identify this barrel manufacturer. Photos attached

I believe it’s the original barrel from a AX308, post ‘14. Looks like it was chopped to 24” from 26” at some point and has remnants of the flats with 308 marking.

It has a CW prefix serial.

Is this a Bartlien?

Thanks,
Ian

 

[Jrb572]

Might be a Tooley barrel

 

[ipsullivan]

Anyone ever seen this s/n prefix marking?