The HKS Magazine Speedloader is capable of loading 15 rounds in 18 seconds. Faster and easier than ever before, our magazine speed loader quickly loads .22 caliber long rifle magazines. Its simple: magazine slips into loader and is held in by hand. Depress thumb lever and load. That's it! Fits Browning Buck Mark, Challenger II, Colt, Ruger 2245, Mitchell Arms (High Standard). Made in USA..