20" or longer 6.8SPC AR barrel?

[rbernie]

Other than the ER Shaw offerings via M1S and the DPMS 20" stripped barrel offering that's never in stock, does anyone else make a 20" or longer 6.8SPC barrel for an AR platform?

 

[KC&97TA]

Go to ARF.com There's a varriants forum there and there's actually a whole website dedicated to the 6.8spc.