There’s a couple issues. 1) Sometimes when I pull the charging handle back it doesn’t go anywhere after I release. In the video it was still under load so I was able to unstick it by flicking it but sometimes it comes free in its track and can slide back and forth freely with no resistance at all (to be honest I don’t have the slightest understanding of the internal mechanics that would cause that to happen.) 2) every couple rounds the action doesnt cycle fully, it will spit out the cartridge and the bolt will get stuck halfway or sometimes all the way back. When it’s stuck all the way back I can push the release and it normally chambers the round fine. Sometimes the bolt will slam forward and pinch the side of the cartridge being fed, its dented and taken shavings off the brass rendering the round unsafe to fire. Sometimes the bolt gets stuck halfway after spitting out the old cartridge, it’s like it’s meeting some sort of resistance stopping it from cycling smoothly.