S&W M&P 20-Round Magazine (.40 S&W)

The Smith & Wesson M&P 20-round magazine is a factory-format spare magazine for full-size M&P pistols chambered in .40 S&W. Constructed of steel with a blued finish, the magazine is made to provide consistent feeding and durable service life. It is intended for use with centerfire pistols and is suitable for range use, training, and duty applications. This item is subject to specific sales and shipping restrictions.

Key Specifications

• The magazine capacity is 20 rounds.
• Compatible caliber is .40 S&W.
• Constructed from steel.
• Finished in blued.
• The listed weight is approximately 4 oz.
• Intended application is centerfire pistol.
• Compatible with Smith & Wesson M&P full-size pistols.
• Package or listed dimensions are 2.10 x 4.05 x 9.25.

This factory Smith & Wesson magazine offers a reliable, high-capacity option for shooters who train regularly or maintain spare magazines for duty and range use. Its steel construction and blued finish provide a balance of durability and tradition, while the 20-round capacity reduces reload frequency during extended sessions. Note that sales and shipping restrictions apply: the item is not for sale to Guam, Puerto Rico, or the U.S. Virgin Islands; not for sale under Illinois PICA; and is not available for direct ship to California, Rhode Island, or Washington.