That guy was like a robot.Not bad.
There are plenty of rifles out there that can do as well and better.
The M&P 15 sport with direct impingement did 820 and it's a cheap rifle.
The LMT AR with the piston system did 830.
But still not bad at all.
Barrels get hot quickly, REALLY HOT with that volume of fire. The plastic fore grips are not built to withstand that much heat and combusted.That gun caught fire...what the hell...