Remarkable for its accuracy and light recoil, the GLOCK 21C Gen4 delivers the legendary stopping power of the 45 Auto round with a high magazine capacity. It has an integral parallel port compensation system which not only reduces muzzle flip and felt recoil, it also aids in quicker follow-up shot target acquisition. The modular back strap system makes it possible to instantly customize the grip to accommodate any hand size. The reversible magazine catch makes it ideal for left and right-handed shooters.