I'm pretty sure my friend that builds my barrels has a good enough relationship with CSC that he could borrow their HK barrel nut wrench and thread and contour your barrel however you want for a reasonable price.
Text me if you want me to ask him.
I have a bunch of different muzzle devices you can try before you buy one.
If you don't like what the muzzle device does you can always put on a thread protector
Hahaha, I should have quoted you
