buyer always pays shipping and FFL fee. seller pays nothin
at least I dont
or add those into your price and tell him its all free 
You would be surprised at how many people will let "Free Shipping" determine whether they will purchase one item over another, it really does work.
I have been doing ebay for several years and see this alot. For example, I posted an ithem for $8.99 with $6.35 (I believe that was the Priority, Flat-rate cost at the time) shipping charges, and had several people look at it but no bids.
As soon as the auction ended, I relisted it at $19.99, on a "buy it now" option with free shipping and it didn't stay active for more than a few hours before it was sold.