Warne M&P 9/40 Mag Extension Gray +5 9MM +4 .40

The Warne M&P 9/40 Magazine Extension is a capacity extension designed for compatible M&P pistol magazines. It is machined from 6061 T6 aluminum and finished in gray with a Type II anodized process. The extension provides a measured increase in magazine capacity for specified calibers while maintaining a compact profile. Intended for use where a modest capacity increase is desired without changing magazine geometry significantly.

Key Specifications

• The product type is Accessory-Magazines.
• Capacity increase is +5 rounds for 9MM and +4 rounds for .40.
• The construction material is 6061 T6 aluminum billet.
• The finish is Gray with a Type 2 Anodized Finish.
• The listed weight is 0.11.
• The listed shipping weight is 0.11.
• The package dimensions are 13.0 x 3.0 x 1.2 (length x width x height as provided).
• The overall length is listed as 13.5 and the height as 1.5.
• Can be disassembled: False.

This magazine extension offers a practical, factory-compatible approach to increase carrying capacity for compatible M&P magazines in 9MM and .40 calibers. Its billet aluminum construction and Type II anodized finish provide a durable, low-profile addition that blends with the original magazine footprint. Suitable for users seeking a reliable way to add rounds with a simple installation and minimal change to handling characteristics.