Japanese LMG magazine check

In game you lift up the magazine to see how many rounds are roughly left in the magazine. Why would you do that? The magazines all had round counters on them to tell you exactly how many rounds you had left in your magazine!



They were also serial numbered to the gun and the mags were numbered from one onwards. Would be neat to start from mag 1 and work your way down. In the pic below it shows mags 6 and 14.