WTB Rhino Optima HP 670 choke for 12 GA A400

If anyone has a rhino optima hp for a beretta a400 extreme in 670 constriction I am in need of one. I bought dad an a400 for his birthday and never dreamed I would have trouble finding the choke. If anyone even knows a store that has one let me know and I will call them.
Thanks in advance.

Great gift! You may have already checked Ebay, but if not it might be worth a shot.

Carlson's makes a .680 turkey choke in Optima HP. (scroll down to the bottom of the linked page)

Trulock makes three different turkey choke constrictions for HP: .050, .060, .065.
The .060 would be closest to a .670 at .673 (HP bore is .733) Here is the Trulock link .

http://www.archerfullthrottle.com/rhino-gun-cases-thunder-bolt-beretta-optima-hp-12ga-670/

I had an A400 and with Nitro shells and the Rhino choke it was awesome. Marks has them in stock, but get ready...... They are $129.00. I would pay it again though for that gun and shell combo. New A5 chokes are no where but online.

BTW, I have a Carlson's .580 turkey choke on my 20 gauge A400 and it patterns so well with the Federal Heavyweight #7s that I don't hunt with a 12 gauge anymore.

Marks does not have the optima hp that fits the A400 I have been waiting on them to get one in for over a month

I was there last week and they had several. If it's Optima HP it fits. It wouldn't have to be Optima HP "for A400".... pretty sure.