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 single stack magazine Adjustable Compatibility Colt - Large Frame Sinlge Line Magazines - 9mm, 45 ACP, 38 Super, .40 Cal, 10mm Ruger - P90 Sig - 220, 239, 245 Safari Arms Llama Star - Fire Star .40 Cal S&W - Single Stack Magazines - 45 ACP, .40 Cal, 10mm Taurus - PT945