Actually it is a hybrid of the Swiss Soldier knife 2008 (Soldatenmesser 08), which is based on the 2007 update of the 2003 German Army knife
and the all black version (0.8463.M3.3) of the One-Hand Trekker, produced in 2010-11 and very hard to find, at least where I live.
Dual density scales on the Swiss Soldier knife and the U.S. Army knife are injection molded polycaprolactam which is called Polyamide 6 in Europe and Nylon 6 in the USA. Unlike hard nylon, Nylon 6 has a little "give" and it stresses your carpal tendon less when you grip down hard. The scales have inserts of black thermoplastic polyurethane (TPE-U) to give a stickier grip when the knife is wet. They work as intended and they are springier than Nylon 6.
I bought a One-Hand Nomad as a closeout and its dual density scales are very nice!
The down side is no tweezers or toothpick. Apparently, Nylon 6 isn't rigid enough to retain them.
I might as well show you the original (2003) and updated (2007) German army knife.
Bundeswehr asked for a bigger thumb hole, which Victorinox put in all the knives based on this design.