>>364723275
If you get good with the AK it's almost always better value for money. That one-hit headshot kill is a gamechanger that can instantly shut down top players at long range. I also feel that headshot kills result in less trade damage so you will stay alive longer.
The M4 has better overall consistency and a good burst for prefiring so I prefer that when retaking sites or pushing against multiple enemies but it lacks those high impact headshots.