Perm Wpns quest

I was looking at some of the Shop files posted in the hack section and I noticed that people said either 'they don't even work' or that they bug once you replace the original shop files back. So, I'm wondering is it possible to still get the perm. version of the guns or is it pretty much fucked unless you buy ap?

It's possible, just a lot harder than replacing one file now.

So atm, won't be possible for me. Thanks. I guess I'll have to just wait for now. q.q