Designed for use with 9mm Luger ammunition used in the Super GP100. These 8-round full moon clips are made from .032-thickness stainless steel and function as a speed loader as well as to assure positive ejection. The Moon Clips have an optimized charge hole design for positive ejection over a wide range of 9mm Luger ammunition. The moon clip acts as a speed loader for quick reloads. Use the stripper tool included with the revolver to quickly and easily unload casings from the moon clips. Sold in a three pack. Made in the USA. Genuine Ruger Factory Accessory