[2019] Famas 2010 Enjoying alot, top notch for me. What is your fav weapon so far?

Been loving the F2000 and Military Mk17, myself. Sometimes I'll change out the F2000 for a Marksman rifle but being in the Sharpshooter tree, the Mk17 is my bread and butter.
Have there been any weapons that you have picked up, fired once, and instantly knew you weren't a fan?