Timber Creek Outdoors(R) Magazine Extension Plate is designed for compatible Glock 17 and Glock 19 Gen 4 and Gen 5 magazines. The extension plate features aluminum construction and provides an extended base configuration for compatible magazines. This configuration features a red finish for a distinctive appearance.Key Features Designed for compatible Glock 17 and Glock 19 magazines Compatible with Gen 4 and Gen 5 configurations Magazine extension plate design Aluminum construction Red finishTimber Creek Outdoors(R) manufactures firearm components and accessories for a variety of popular firearm platforms. The company produces precision-machined components with an emphasis on durable materials functional design and consistent fit. Timber Creek Outdoors products are available in a variety of configurations and finishes.