I was adjusting the gas block and a guy I knew was at the range next to me. I fired one round and I heard "JESUS JEFF!!!!" and he went outside to talk on the phone. Some cardboard fell off the partition from the blast at the same time. I had him load up 5 rounds and I stood off to the side to experience it but I didn't think it was any worse than a FSC556 or battle comp.Looks good Jeff, post up a report on that comp after you shoot it. Interested to know how it shoots.