WARNE M&P 9/40 MAG EXTENSION FDE

The Warne M&P 9/40 Mag Extension is an accessory designed for Smith & Wesson M&P pistols chambered for 9mm or .40 S&W. It increases magazine capacity and installs onto compatible M&P magazines to provide additional rounds when needed. Constructed from 6061 T6 aluminum with a Type 2 anodized Dark Earth finish, the extension balances durability and corrosion resistance. The design focuses on practical, on-gun capacity enhancement for range use and general carry applications.

Key Specifications

• Compatible with S&W M&P 9/40 pistols.
• Capacity increase: adds +5 rounds for 9mm and +4 rounds for .40 S&W.
• Construction material: 6061 T6 aluminum billet.
• Finish: Dark Earth.
• Finish type: Type 2 Anodized Finish.
• Product type: Accessory - Magazines.
• Can be disassembled: False.
• Drilled and tapped: False.

Rugged materials and a purpose-driven profile make this extension a practical option for owners of S&W M&P 9/40 pistols seeking reliable, additional magazine capacity. Its straightforward installation and durable finish provide a clean, functional upgrade for everyday carry, range sessions, or general use.