Since you can PAP the galvaknuckles using the glitch, cant you do the same to the bowie knife too?
You cannot actually pack-a-punch the Galvaknuckles though. They go into the machine, but they don't come back out.
Bowie Knife can also go into the machine but it never comes out either. Just an exploit in the engine really.
I don't know if Pack-A-Punching Ballistic Knife's can count. If so then yeah.
You all remember the ZOMBIE_TAZER_KNUCLES glitch? Now that was an awesome glitch. Knuckling zombie 11 times before they hit the ground. LOL good times.