[DCBryan1]

"Listen VERY closely to the audio. No manufactured fully auto weapon has a variable rate such as the one produced in the videos I have seen. My guess is he is using a semi auto weapon slide fed with a bumper thus rendering the gun fully auto. Once you pull off that first round you can stop until the rounds are expended" I concur. You can clearly hear the rate of fire slow then speed up in a choppy manner in the later shots. However the very first part of the audio there is a ten second burst with a very steady rate of fire. That burst sounds like a belt fed to me. He may have had one belt fed in one location then moved to the other and used a slide fire/bump fire stock or other full auto simulator. Shooter was almost certainly changing weapons during the shooting.

Could be using crappy ammo....I've had Wolf Tula 7.62 x39 go weird on me firing in an RPK (legal full auto post 1986 DS gun)...sounded just like that.

Im betting an AR 15 with slidefire, autoglove, or ECHO ARII trigger myself.

[precisionshootist]

Yes I would agree most likely full auto simulation but the first couple ten second plus bursts definitely sound 1919 like belt fed. later you get the choppy slide fire/bump fire type sound. What I was getting at earlier is if he had say a 1919 he may have had it set up in the first window then moved to the second shooting position and picked up a different weapon. There are two windows busted out indicating to different shooting positions. Belt feds like a 1919 are not easily moved by a single 64 year old man.

Just a theory but the money goes on multiple weapons with simulated full auto fire.