Faster and easier than ever before, the HKS Mag Loader is capable of loading 15 rounds in 18 seconds. It's this simple: the magazine slips into the loader and is held by hand. Depress the thumb lever and load. That's it! Loads double stack magazine Adjustable Compatibility Para Ordnance - P12, P13, P14 Star - Mega Star STI (McCormick) EAA - Witness 45 ACP Astra - 45 ACP Caspian - Others...