Mountain Billy Gun Lab(R) GOAT15 magazine is designed for compatible GOAT15 firearms chambered in .22 LR. The detachable magazine provides a 20-round capacity and is purpose-built for the GOAT15 platform. It provides a replacement or additional magazine option for compatible GOAT15 applications.Key Features Designed for compatible GOAT15 firearms Designed for .22 LR ammunition 20-round capacity Detachable magazine design Purpose-built for the GOAT15 platformMountain Billy Gun Lab(R) develops firearms components and accessories for recreational shooting applications. The company produces purpose-built products with an emphasis on functional design platform compatibility and durable construction. Mountain Billy Gun Lab products are designed with attention to fit practical operation and consistent performance.