This is a Magpul Industries Grip known as the MOE-EVO, model MAG1005-BLK.
The Magpul MOE-EVO Grip is an optimized drop-in upgrade to the CZ Scorpion EVO 3 family of pistols and carbines. Featuring an enhanced grip angle and Magpul's proprietary TSP texture on contact surfaces" the MOE-EVO Grip gives users unsurpassed comfort" control" and durability. This lightweight and ergonomic grip builds on the legacy of Magpul's MOE AR and AK grips to provide CZ Scorpion EVO 3 users positive control in all conditions" with or without gloves.
Features:
Optimized grip angle
Aggressive TSP grip texture
Ergonomic design mitigates fatigue
High-strength injection-molded polymer construction