CZ's 452 and 453 rifles are some of the very best mid-level bolt action rimfire rifles--favored by professionals and target shooters from all over the world. They combine hand-crafted engineering with precise manufacturing and ultra-reliable magazines, it's the best rimfire platform for the money. These 10-round extended magazines let you double down on magnum firepower and trigger time with your CZ 452 or 453 bolt-action rifle in .22 WMR.