The Tyrant CNC TDG48MAGEXGOLD magazine extension is designed specifically for Glock 43x and 48 models. This extension adds 4 rounds to the factory magazine and is constructed from aerospace grade aluminum in a striking gold finish.Key FeaturesMaterial: Made from aerospace grade aluminum for durability and lightweight performance.Added Capacity: Increases magazine capacity by 4 rounds.Included Spring: Comes with a 10% power spring for reliable functionality.