Apex Tactical Specialties Optimized Pistol Grip for CZ Scorpion Evo 3 S1, Includes Grip Tape Panels, Black 116-110 The Apex Optimized Grip for the CZ Scorpion EVO 3 S1 fits both the pistol and carbine and optimized grip angle improves overall ergonomics when compared to the factory grip. It is designed so the trigger assembly can be removed without removing the grip. It requires a 3mm Allen wrench for installation. (Not included).