This is a Magpul Industries Part known as the MOE Slim Line Grip, model MAG1070-BLK.
The Magpul SL Grip Module is a high-strength" injection-molded polymer grip module for HK94/93/91 & Semi Shelf HK Clones. Designed with improved ergonomics" a non-slip texture" and a modern aesthetic" the SL Grip Module brings numerous enhancements without sacrificing the iconic silhouette of the firearm. Containing innovations found in Magpul's other grips" the SL Grip Module provides increased firearm control with a TSP texture and easier to access fire control components through an optimized grip angle. HK "Navy-style" pictograph markings give a clear indication of the selector position while the MIAD/MOE Storage Core compatibility keeps necessary small items at hand. The combination of high-strength polymer and corrosion-resistant steel components provide proven Magpul reliability.
Features:
Optimized grip angle and TSP texture for positive weapon control in all environments
HK Navy-style style pictograph selector markings (Safe/Semi/Full-Auto)
Enhanced ergonomics allow easier access to fire control components
Accepts MIAD/MOE Storage Cores
High-strength polymer and corrosion-resistant steel construction
This product can serve as one 922(r) compliant component for imported MP5 clones
Drop-in installation
COMPATIBILITY: Not compatible with S-E-F/Safe-semi SSL for metal trigger housing units, swing-down receivers, or K-length receivers