I have this mounted on a 5.56 ak with 24x1.5mm threads.
Seems to have roughly equal performance to the standard ak74/ak100 style muzzle brake. Be mindful of this of you were hoping for a more aggressive brake.
It has two slots for timing which is nice, moving it over from the true vertical position gave me some slightly better results than the standard 74/100 style brake. Still a very close call.
I like the style, just would have been nice for a smidge more performance.
