The HKS Products GL453 is a thumb-operated lever arm pistol speed loader that eases your firearm loading process. Fast, efficient, and easy to use, it takes away the hassle of sore fingers and fatigue.The remarkable ability to load 15 rounds in just 18 seconds, whether in single or double stack mags, sets it apart from standard loaders. Considerably versatile, it operates equally well regardless of you being right or left handed.