What's he doing at 1:52? Why whop his M16A4 magazine at all? And why his head? Why not wallop it against the ground? It's dangerous to conk your head in general.

  • They are wearing hamlets, I think there is a layer of soft cushion inside. They want to make sure all the bullets are well aligned, no dust or small stones inside which may cause jamming.
    – Yu Zhang
    Nov 5 '21 at 4:24
  • 2
    Please describe the action ion the clip. The video might be taken down.
    – BCdotWEB
    Nov 5 '21 at 8:22
  • Between this and their last question, it looks like they might be trolling. Nov 6 '21 at 14:05

We see soldiers do this in other movies - Apocalypse Now (during the Ride of the Valkyries attack sequence) comes to mind - particularly because this is mimicked by the marines watching the sequence in the cinema during Jarhead.

I don't know if this is really done by some soldiers in the belief that it "settles" the rounds in the magazine and prevents jams.

What I do know is that my old instructors in the British TA specifically told us not to do this, as it might cause the feed clips to deform and that would cause a jam.


Soldiers have been doing that for decades with the belief that it aligns the rounds with the back side of the magazine and therefore decreases the likelihood of a jam caused by a mis-aligned round.

That said, some people point out that this should make no difference to a properly built and maintained weapon.