Hi Shawn is from defensive edge in the US i am sure he can send a Gas Vent to you there in Italy. Also search 308 nate he is making a very good design and he would be able to send you one i am sure.
Here is a link to the post where he advertised them.
And here is his website
Here is Shawn's details
his username is Shawn Carlock
One of them could send you an awsome muzzle break that will work well for you. I have some large tank style muzzle breaks but that is not the style you are after.
Kirby said my large break looked like a JP on steroids.