Designed for superior firepower and deep concealment, the Sig Sauer® P365 9mm 15-Round Magazine features a precision-engineered, nitride-coated steel body for lasting durability and reliable corrosion resistance, while the factory-installed, extended polymer floor plate integrates seamlessly with your standard P365’s frame. A strong, high-tensile steel spring, coupled with a durable, polymer anti-tilt follower ensures smooth, reliable feeding, while factory-drilled witness holes allow for quick, visual round counts. Better yet, the extended floor plate boasts a unique, factory-drilled and numbered witness hole as well! Coming in at just 1” longer than the standard, flush-fit magazine, the P365 9mm 15-Round Magazine optimizes your carry capacity, without sacrificing concealability. Plus, this magazine ships with an additional, easy-to-install base plate to accommodate your P365X or P365 XL pistol. Compatible with standard P365, P365X, and P365XL pistol models only.