The best replacement for assault rifle is shotgun.

The best alternatives to assault rifle are rated as following:
★★★★★  shotgun
★★★★  carbine bf4
★★★★  carbine
★★★★  battle rifle
★★★  machine gun
★★★  hunting rifle
★★★  assault weapon
★★★  smg
★★★  rifle
★★  submachine gun
★★  shotgun xcom
★  light machine gun
★  suppressor
★  chinese assault rifle
★  sporting rifle
★  lmg
★  handgun
★  sniper rifle
★  storm rifle
★  semi-automatic
  plasma repeater
  smg ghosts
  musket
  semi automatic

Your alternative for assault rifle is not listed? Suggest!
Speaking about assault rifle, one probably shouldn't forget about highest rate of fire.

Other search terms related to assault rifle and their ratings are:
★★★★★ highest rate of fire
★ fastest rate of fire
You have in mind a companion for assault rifle and it is not yet here? Propose!



Google Trends

Scale is based on the average worldwide traffic of assault rifle in all years. Click on graph for more.
assault rifle
shotgun
carbine bf4