Most Popular Barrel Length for 6mmARC?

[6mmAR]

Robert...I thought this might be helpful: here's a poll on barrel lengths from the Grendel Forum. Many of us here are Grendel owners so this might provide insight into preferences.  Only 23% of owners who responded have Grendel barrels over 20" 

https://www.65grendel.com/forum/showthre...ndel-AR(s)

Thanks - it seems like the most popular is 20", followed by 18", followed by 16".