J M My carbine is almost identical to his and mine does the exact same thing. I’m seriously considering what you said. switching out the standard carbine buffer to a heavier buffer like an H or H2 to slow the action down a bit. So in your opinion that should help?
I hate to be "that guy" but you really shouldn't be pulling the trigger with the inside of your knuckle. At least it appears that way in the video. Use the pad of your fingertip instead.