Shield Arms PMAG Gen 3 +5 Extension – Mud

The Shield Arms PMAG Gen 3 +5 Extension increases magazine capacity by five rounds while maintaining reliable feeding and ejection. Designed specifically for Magpul PMAG Gen 3 magazines, this extension replaces the factory floorplate to convert standard 30-round magazines into 35-round configurations. Ideal for competition shooters who want extended capacity without sacrificing the proven reliability of PMAG magazines.

Machined from aluminum and finished in mud Cerakote, the extension adds minimal length to the magazine and installs with basic tools—no permanent modifications required. The extension includes an upgraded spring to ensure consistent feeding across the extended capacity range. Installation is straightforward but requires attention to proper spring seating and follower alignment.

• Part Type: Magazine extension
• Compatible Firearms: AR-15 platforms using Magpul PMAG Gen 3 magazines
• Capacity Increase: +5 rounds (30-round to 35-round)
• Material: Aluminum
• Finish: Mud Cerakote
• Installation: Drop-in with basic tools
• Includes: Extension body, upgraded magazine spring