[ImJustAnotherOkie]

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.

[Pelham]

One of the pics inside the shooter’s room shows an AR 15 with a Slide Fire stock mod and a 100 round magazine. This could be what sounded like a belt fed machine gun.