NDZ Performance US Navy Submarine Silent Warfare Engraved Aluminum Grip Frame Slug Plug for Glock 43 G43 9mm Engraved NDZ Billet Aluminum Grip Frame Plug for Glock 43 100's of High Quality Permanent Laser engraved images by NDZ Performance Fits flush, prevents snagging Billet Aluminum plug includes set screw, allen wrench for installation and removal 100% Aluminum - NOT plastic. Also helps guide mag. into magazine well