Named for the grasshopper mouse, a carnivorous rodent that is known for eating scorpions, the GHM9 is a made by Swiss arms manufacturer B&T. The GHM9 pistol is built on a direct blowback operating system with a built-in recoil buffer spring. All of the controls on the GHM9 are ambidextrous and the charging handle can be positioned on the right or left hand side. The barrel of GHM9 is free-floated adding to the accuracy of the pistol and reducing the time it takes for the barrel to cool down after rapid fire.