ID this mag tube please

[ERdept]

It's for Benelli M4, it's 17 inches from thread to thread.

Is it stock or aftermarket. how many rounds does it hold?

[CamW]

Daves Metal Works in Covina makes a M4 tube that's 18 1/8 " long and the capacity is 7+1.

http://davesmetalworks.com/ben4.htm

[ERdept]

Ohh, I think I have this then. Thank you. Now to sell it.