[CaptainCrunch]

When I was in the army, we used a lot of blank rounds. Blanks are basically the same as a regular round with the bullet removed and replaced with a wad of packing material to keep the gunpowder in the round from spilling out.



When we were using blanks we added a blank firing attachment to our weapons. This prevented the wad from exiting the barrel, but still allowed the expanding gases from the explosion to exit. With out the bfa, that wad comes out of the barrel at pretty high speed, so if you're close range when you fire that wad can do damage.


That's why we were also encouraged not to aim directly at a person at close range.



I expect because they're going for realism, they don't use any kind of barrel attachment.