

There is no need to manufacture anything against a regime that uses everyday death sentences, supression and violence, especially during a time when it suddenly kills thousands of people.
The exact number of thousands is very hard to determine in the conditions of communications blackout and widespread protests. As much as I hear, getting infromation out of Iran can sometimes mean a motorcycle trip to the nearest border. Just like in case of earthquakes, when you first hear of 50 casualties and later hear of 50 000, an experienced person should be able to calculate in probabilities.
Side note: in the US, people are outraged over 1 protester getting shot.






Initial working hypothesis: subsonic ammunition in the context of a crowd chanting. The sound is that of bullets hitting, not shots being fired. The gun is, after all, some distance away.
I have never been shot at, least of all with subsonic bullets from a silenced gun. To validate my answer, I watched some gun nuts deliberately record getting shot at (behind a considerable amount of earth) from this combination. Start at 3:30 to skip the boredom and ads and listen to how .22 sounds (bigger projectiles will follow).
However, basing on reports that I have read so far, subsonic + silencer is a very big exception. The biggest damage was done with ordinary assault rifles, shotguns with pellets and truck mounted machine guns.
Edit:
Some folks recorded coming under fire, and the death (despite attempts to administer aid) of their co-protester. Incoming fire from rooftops sounds like clicks or mild cracks to me. They probably didn’t approach the shooters to ask if they had a supressor or silencer, subsonic or supersonic ammunition. The video is very old, from last week’s Thursday, January 8. The worst part was yet to begin. Content warning: blood and death.
https://t.me/KurdishFrontNews/22886