When I first got vz58 in .223, it arrived with an effective but loud muzzle brake. I deemed it unnecessary and wanted to replace it with a flash hider. Fortunately, at least four different options are readily available.
I got two of them, a very small and light variant (above) and a larger, more effective Phanton (below).
What impressed me about these wasn’t just the good quality machining but also the ease with which I was able to swap them. Press a detent pin, spin off the muzzle device, replace with another, release pin.
Simple, effective, toll-less, provides indexing. No crush washers needed. Why aren’t more rifle designs using this method?