Quote Originally Posted by raymill View Post
they work .22lr thru an AR crazy quiet.
Someone is going to have to eloquently explain the term "crazy quiet" + "supersonic round" to me sometime. I have a few purpose-built $1,000-1,500 suppressors and with .223 I would not deem any of them "quiet", but I'll admit to not having tried a Penzoil product on the muzzle.