Choosing a perm

M416 CQB - Naturally Overpowered and usually everybody's choice as a first NX gun. It'll work in all cases 100%
Cz scorpion evo - To me it is a much better version of a p90tr excluding the scope, I recommend it.
Magpul - Never really used it but it has a fairly high fire rate but you have to be fairly close in order to get kills with it
P90tr - Amazing gun, stats are slightly lower than the Evo but it is still an OP Smg if you're looking for an smg
Kriss spec ops - Amazing hip fire gun to spray with in my opinion, damage is good, fire rate is good, but you gotta learn how to handle the odd recoil and you'll be good
These are all my personal opinions and I understand someone may have a different point of view than I do, but there's my input and hope it helps! :]

You must be shit at the game to think NX standards give you any real advantage.

You obviously haven't compared standard GP guns to a P90TR.

Lmfao, considering I've owned every NX-standard and almost every NX rare for perm, along with using GP weapons consistently, I'd think I've taken ALL NX guns into account.

Cough, 416, cough.

This man speaks the truth of all sexy guns.