This muzzle brake is specifically designed for an AK47 with 24x1.5mm threads. It has Hub (1.375x24) threads on the outside for a suppressor. It is made out of Titanium, uses a barrel face mount design. It uses the front sight detent pin to keep it secure, weighs less than the stainless competition and looks good. Pictures show raw machined finish, Black DLC coating is extra. 

Recommended to be installed by a professional. Check suppressor alignment with alignment rod before using.