Enhance your Glock Gen 4 & 5 with this precision-engineered magazine extension offering an additional round for 45 GAP and boosting capacity by two rounds for 9mm 40 S&W and 357 SIG. Designed for seamless integration this extension ensures reliability and improved performance making it an essential upgrade for competitive shooting or personal defense. Crafted from durable materials it promises longevity and resilience maintaining the sleek profile of your firearm while delivering enhanced firepower when you need it most.