Considering his reputed wealth and overseas connections it’s easy to see him getting hold of a light machine gun. But so far all we are hearing about are the bump stock guns. Did it sound to you like the RPM varied? I wasn’t listening for that so I have no idea.
I didn’t hear enough but what I did hear was more AK47. Slower than a M16. M16’s are pretty fast not staccato. I may be talking out my ass.