When you run out of ammo irl with an AR-15 style rifle you can feel and even hear and feel the bolt lock back Developers should add this with weapons it’s a little detail that can be useful I’ve seen multiple people shoot the exact number of round the mag holds and not noticing the bolt is locked back before they try to shoot again since they didn’t hear/feel it in the game
same with the little sound a rifle does when you only have 1-3 round left in your mag could be nice to hear those