Bad threads - VG6 Precision Gamma 65 BBSS Muzzle Device

I bought this thinking I would receive nothing but the best being that it’s Aero. I was wrong. The threading was not properly tapped. It will only screw 1/3 of the way onto my 6.5 Creedmoor barrel. To double check that it wasn’t my barrel I tried my 6.5 Grendel with the same result. I then went back to my creedmoor barrel and tried hand tightened it on again. Unfortunately this time it got stuck and I had to use my wrench. And of course I scratched it so now I have a paperweight.