Compatible with the Smith & Wesson CSX 9mm handgun, the Smith & Wesson CSX 9mm 12-Round Magazine is a performance-enhanced concealed-carry pistol magazine, built around a premium stainless steel body with a corrosion-resistant Nitride finish and flush-fit profile for snag-free carry, while numbered witness holes offer quick visual round counts for on-the-move reliability. The high-tensile steel spring and polymer follower ensure smooth, reliable feeding, and the precision-engineered design provides a snug, wobble-free fit for improved field service. Plus, the removable polymer floor plate offers easy, tool-free disassembly for quick cleaning and maintenance when required.