I’ve tried lots of flash cans, this is the only one I’ve found that really tames a 10.5” .223 for my ears around cover. It’s not a suppressor obviously, but from behind the gun, it sure does make a big difference. I tried the JMAC BDS and it did okay at redirecting sound, just nowhere near as much as the SME, to my ears anyway. The JMAC is a lot cheaper, but I prefer the looks of the longer can. My wife can tell a big difference from inside the house when I shoot out back with the SME, so I guess it works. I think the price tag is worth it, especially since I refuse to shoot subsonic .223. Just my experience though.