I am not into the bullpup design either. I really want to be. Personally, I find the design very attractive but when it comes down to trigger time it's off for me.
I do need an SBR for CQB that for sure.
A big pig is dangerous not matter how big you are. Your friend is a beast! I am sure the dogs help so he can get in there.A 100 to 400 lb boar can gore you to death. I have seen boar kill dogs wearing armor. It's nuts.I respect the hell out of him.
I don't know if I could use a knife without a dog. A 100 pound plus boar can fuck you up in a very bad way.They are very mean and don't back down.My spear was to small and it took about 6 minutes before I killed the boar. It was bad. Without a bigger spear I wouldn't do it again.