An affordable alternative to factory OEM magazines, the Promag® CZ® P-10 C 9mm 15-Round Blue Steel Magazine is a faithful clone of the reliable P10-C magazine, manufactured to factory tolerances, but at a fraction of the cost for superior reliability at a low, affordable price. The heat-treated steel body features a corrosion-resistant black oxide finish for lasting durability. Plus, a heat-treated chrome silicon wire internal spring eliminates binding, ensuring the injection-molded polymer follower operates flawlessly for reliable feeding.