I've been told the same before. Just shipped one this week. Make sure you are not using a "UPS Store", but rather a hub location. Some of the stores refuse forearm shipments.
The "UPS Stores" are franchises, so they make their own rules. I have a UPS Store about 3 miles from here, but have to make a 36 mile round trip to the UPS Center whenever I want to ship a long gun.
