I have a newly machined .30 rifle barrel and a cone type flash hider that I would like to get some finish on.  

Coastal Gun Works it.in Va. Beach has done some excellent Parkerizing on rifles he made. Contact him to see if he still does it.

OP:  you probebly want to farm this one out.  But for anyone into DIY, parkerizing is really simple to do at home:

http://www.blindhogg.com/parkerizing.html

Park IS easy to do if you have the equipment. Metal prep is the key. Totally clean bare steel and wash it with brake cleaner. ANY trace of oil including WD40 will screw the finish!

I have a pair of heavy 14 gage SS 40" long pans I could sell if you want to pick them up. They are heavy bastards. I used to do this stuff for my own use. You need a couple of multi burner camp stoves to heat  a large pan.

I used to use them for hot bluing too. One pan to heat chemicals in and one to boil up a rinse cycle.

I live in Hampton and am interested in the stainless pan you have, how much do you want for them

I just IM'd you my contact info!