I have just been told that GunPal is having problems and are not paying sellers on time or maybe not at all. I have no specifics, and this is just second hand info so I cannot confirm that it is true. I would recommend you check before you sell or buy through GunPal.
I hope this is untrue since it would be nice to have a gun/ammo friendly alternative to PayPal.
Perhaps other Forum members have better info. If so please post it.