I call these CT's. They are not MP darts and they were made especially for me and are thus a unique one of a kind set.
The points are a little short for my taste so I may end up replacing the points (but to be fair I did ask for short points).
As you can see they are similar in shape and appearance to my 28 gram GT's.
These three darts are all made from 75% Copper Tungsten. The middle one I have had for about a year. The other two are brand new. The material darkens as it ages.