Hamas - or rather its specific military wing the Al Qassam Brigade - posted a video on Twitter / X yesterday purporting to show the manufacture of .50 caliber sniper rifles in Gaza. I was curious to have a look at it, as I've seen a lot of rifle factories and done some of this sort of work myself, so let's see what the video actually shows when we look carefully...

Conflict Armament Research's report on the Iranian AM-50 (copy of the Steyr HS-50):
https://www.conflictarm.com/technical/iranian-am-50-12-7-x-99-mm-anti-materiel-rifle/

Thanks also to Armament Research Services for consultation on the AM-50.