Barrel length

[colocowboy01]

On an AR barrel how is the barrel length measured. Is it total/overall length, tip to bolt face or is it from barrel tip to the ridge where the delta ring goes? Thanks for any clarification.

[Help]

[Hoser]

On an AR barrel how is the barrel length measured. Is it total/overall length, tip to bolt face or is it from barrel tip to the ridge where the delta ring goes? Thanks for any clarification.

[Help]

Boltface to barrel crown.

[colocowboy01]

Cool, Thanks.[Beer]