MAGAZINE M&P40/M&P357 15RD 194390000 | 40S&W AND 357SIG Manufacturer Model Number: 19439 Manufacturer: Smith and Wesson Model: M&P40 / M&P357 Magazine Caliber: 40 S&W Type: Accessory-Magazines Item Type: Accessory Firearm / Accessory Capacity: 15 Shipping Weight: 0.24 Feature: Accepts 40SW and 357Sig Optic Adjustable Objective: false Optic Reticle Illuminated: false