Specifically designed for use with the new Smith & Wesson M&P FPC pistol-caliber carbine the Smith & Wesson M&P9 9mm 23-Round Magazine with Adapter is a genuine S&W factory magazine, designed to deliver exceptional service and consistent operation in any target shooting or training application. Featuring a durable stainless-steel body with a corrosion-resistant finish and a polymer adapter to ensure a flush fit and consistent service with your FPC rifle. The high-tensile steel spring and polymer follower ensure smooth, reliable feeding performance. Whats more, the precision-engineered design provides a sure fit for dependable, field-ready performance you can depend on, and the removable floor plate/adapter allows for quick disassembly when maintenance and cleaning are required.