NR length .458 SOCOM AR-15 barrels?

[Scotty454]

Anyone know where one might find an 18.6"+ .458 SOCOM AR-15 barrel? Wanna chuck some ridiculous bullets at gongs with my SLR

 

[jiffx2781]

I know ATRS is contemplating making some big bore AR barrels. They seem to be leaning towards 50 Beowulf but are also considering 458 Socom and 450 Bushmaster

 

[F22_RaptoR]

Check with Herron Arms maybe, I'm pretty sure he's made .458 and .450 barrels for the ACR's which are all custom. So putting together and AR15 spec barrel should be easy enough for him.