Sig Sauer P320 Sub-Compact Black 9mm Luger Handgun Magazine - 15 Rounds - The ProMag Sig Sauer P320 Sub-Compact 9mm 15-Round Magazine is an affordable, yet reliable aftermarket pistol magazine, constructed of heat-treated steel with a durable black oxide finish for superior strength and reliability in any self-defense or target shooting application. The heat-treated chrome silicon wire spring and injection-molded polymer follower ensure smooth, reliable feeding, while numbered witness holes allow for visual round counts in high-stress environments. A removable floor plate allows for easy disassembly for quick maintenance in the field, while precision-engineered tolerances ensure flawless fit and function for superior reliability. Better yet, this aftermarket pistol magazine is backed by ProMag's renowned lifetime warranty, promising superior quality and lasting service you can depend on. Order yours today! Made in USA Extended Magazine Magazine body constructed of heat treated steel with black oxide finish Injection molded magazine follower Magazine spring formed from heat treated chrome silicone wire Polymer extension sleeve increases grip length to compact frame size Removable floor plate Numbered witness holes