Favored by civilian and professional shooters across the globe, the KCI(R) 1911 .45 ACP 8-Round Magazine is an affordable aftermarket centerfire pistol magazine, designed to deliver factory-like field performance at a fraction of the cost of factory magazines. Featuring a high-tensile steel spring and metal follower, this magazine offers jam-free operation and consistent cartridge alignment for a reduced risk of jams or failures. This magazine features durable, yet lightweight steel construction with numbered witness holes and a polymer baseplate for enhanced reliability and improved durability while on the move. Better yet, this magazine is backed by a lifetime warranty. Order yours today! Durable steel construction Numbered witness holes Steel wire spring Polymer floor plate