The one-handed German Army Knife (OH-GAK) replaced the 108mm GAK in 2003. This knife is almost identical as the one-handed Trekker, a 111mm liner locking knife with a one-handed, partially serrated main blade, a wood saw, a can opener and a locking can opener/screwdriver/pry bar. It also has a reamer/awl, Phillips screwdriver and a keyring.
The GAK has olive drab green scales with a German Army eagle molded in the front scale and lacks the toothpick and tweezers of the Trekker.