ThunderBeast Ultra 5" and 6.5 Grendel Preliminary Test Results

[lead chucker]

I have a ultra 7 that should be in my grubby hands any day now. But the ultra 5 does look sexy and would be great on my 8" blkout with subs. I have noticed the port noise on my ARs is much louder than the muzzle noise. I could see where the 5" would help this, but its a trade off with port and muzzle. Guess its still pick your poison.