That is correct. If Mossberg pulls out, there will be a huge hole in the show. Mossberg is next to Thompson. Ruger is next to Thompson across an isle, and Trijicon, SecureIT Tactical and Combative Edge are across another isle from Ruger. Ruger, S&W, Thompson, Trijicon, SecureIT and Combative Edge are all boycotting.
There is a coordinated effort clear one corner of a hall to an entire hall to all of the halls at the show. There are a lot of people making this boycott work.