Well this one might go up for sale pretty soon, as it was a prototype kinda deal.....
I will have a bird cage and vortex birdcage made as I like that design much better but it was too much work for the first one made in 13.5x1 LH thread. It is amazing craftsmanship and is similiar to the Smith enterprise flash hiders, except that the cuts go the other direction since it is a LH thread......
http://www.smithenterprise.com/products06.html
I got those so I don't have to look at my threaded barrel anymore and wonder how long it will take till I will be able to get a suppressor......