USP 9 Upgrade Recommendations

So I just picked up a new USP 9. This being my first USP I am not very familiar with which upgrades are most recommended.

Currently I have the JF installed and an extended magazine release is do to arrive tomorrow. I plan on purchasing Trijicon Night Sights and possibly the Match Trigger Kit for it. Would you guys recommend any other upgrades that might be of use for the pistol? I don't plan on using a tac light or laser.

Thanks in advance for the input everyone.