Ya I have an SI Defence muzzle brake , but I wasnt sure if it would work on the WM so I called them and asked if it would be ok. Was a new guy I hadn't talked to before said he would ask and call me back. He never called back. So was looking at other options. I feel like if it's threaded 5/8 24 you would think they all would work but I would hate to be wrong.
I see gemtech has a new one out for magnums been looking there too.