WTB Bartlien carbon fiber #4 6mm 7.5 twist barrel

[Sykes]

Looking for a #4 Barlien carbon wrapped barrel blank, that's all my stock will allow is a #4 contour.
6mm 7.5 twist 22, 24 or maybe 26" length.

Let me know if you have one you would sell or know where I may find one

Thanks!