Sorry, but when did 140 db become “hearing safe”? I spent more than forty years as a Safety Engineer and unless the laws of physics has changed since I retired anything over 95 db WILL cause permanent hearing loss. Sorry to be the bearer of bad tidings, but you’re still going to need hearing protection if you want to save your ears…. (for what it’s worth I use both ear plugs AND muffs when at the range.
Question: Is Springfield recommending that if this suppresser is used that you should not adjust the gas pressure setting FROM normal? The article states that it's not required unless using "hot" ammo?