Upgrade your Glock Gen 4 or 5 with the Strike Industries Modular Red Mag Release. This innovative release features two interchangeable push button faces allowing you to customize your firearm with ease. Crafted from durable 6061 aluminum the button faces deliver both style and strength while the high-density polymer internal mechanism ensures smooth and reliable magazine ejection. Designed for precision and performance this mag release is the perfect addition to enhance your Glock. Note: Not compatible with models 36 42 and 43.