I've been planning this, but sadly here is the problem. Nexon is removing perm options from the game. Every weapons will suffer from this as Nexon didn't say they'll keep it forever, but a 'longer period'.
In that case, people should buy as many perms as they can or pick some perms to buy to keep. The weapons will have the perm. option removed sooner or later.
Here is my proof:
Nexon is losing money as people are not buying a lot of weapons anymore.
Nexon is removing very popular guns, the P90 TR is one of the most popular and it is being removed, also the UMP45.
Nexon knowing that they'll need to increase or stabilize their profits must remove the perm weapons to promote more spending from people.
Should you worry? A little, you should be more careful with your accounts and keep a 'legit' account to save your perms on.
Notes: The weapons are still in the game, but you'll just not get them perm anymore.