Pearce's extension grip for the Glock 43 replaces the magazine floor plate providing one extra round of capacity. It is approximately 3/4" additional gripping surface for better control and comfort while also incorporating the factory texture pattern.A magazine extension grip for the Glock 43 (9mm). This extension replaces the magazine floor plate providing one extra round of capacity and approximately 3/4 inches additional gripping surface for better control and comfort while also incorporating the factory texture pattern.