The Heckler and Koch weapons MR308 and MR223 do not have a shoulder behind the thread, but a cylindrical fitting surface with a chamfer between them.
This leads to problems like aperture contact when mounting a silencer or a regular M15x1 brake.

That's why we made this adapter, which provides a silencer and makes it possible to mount a normal M15x1 silencer or a normal M15x1 brake.

Weight approx. 6g
Material Rifle barrel steel
Gas nitrided and oxidized surface for maximum corrosion and wear protection