There are adapters for different magazines of various gun brands available. The interchangeable adapter pieces are coded by a Morse code. All adapters are developed for original magazines - be aware: not all replica magazines might work with the official adapters. Nine Reloaded is designed for fast reloading of 9x19mm ammunition from classic 50-rounds-packs. Some ammunition brands work better than others - it depends very much on the style of the packaging of your ammunition brand of choice. All you need is the Speedloader to get started! This set is sold as the loader with adapters for GlockA(R) 17/19. Adapters for other models are sold separately. Mfg: Nine-Reloaded