Who makes a 54 cal percussion pistol with long barrel?

I see the Pedersoli Bounty 16" long barrel in 50 cal. Looking for a .54 cal long barrel percussion. Anyone know where I might locate?
thanks ahead for your response.

 

[Rogue River]

This is the longest in .54 that I have seen!

http://www.flintlocks.com/pistols.htm

Opps........flintlock only I think!

 

[heraldj]

Try Flintlocks Etc,(flintlocksetc.com). Rich is full line Pedersoli dealer and a great guy. I have purchased a few from Rich. Good Luck.

 

rogueriver chasing crow
I would not want anything longer than 16" but was looking for the .54 cal. hence the heavier ball. Will contact places you guys noted. May get a regular length it would probably be a whole lot easier to handle and carry.
thanks guys

 

ended up picking up a Lyman PP .54. Hefted a .45 in the Bounty and it was not what I though it would be for hold and so went with the shorter piece. thanks for info above