Area 419 Universal SA Magazine Extension Red for ARC and AICS Magazines 4/rd

The Area 419 Universal SA Magazine Extension in red is engineered to enhance magazine capacity while maintaining reliable cartridge alignment for improved mobility in the field. Unlike typical rectangular magazine extensions, this model features an angled attachment rail that matches the magazine pocket angle, ensuring the cartridge column feeds straight into the extension without misalignment.

This precise machining process, completed in a single 4th axis operation, optimizes feeding reliability and ergonomics. The extension includes fluted sides to reduce weight and provide a secure grip for faster magazine changes during movement.

Designed initially for the American Rifle Company (ARC) +4 mag extension, the design was adapted to also fit AICS and Accurate magazines, including standard bolt face and SAUM/WSM configurations. It is not compatible with AI AW magazines or Magpul polymer AI mags.

Features

• Angled attachment rail for proper cartridge alignment
• Fluted sides for weight reduction and improved grip
• Universal fit for ARC, AICS, and Accurate magazines (excluding AI AW and Magpul polymer AI mags)
• Machined in one operation on the 4th axis for precision
• Capacity increase varies by magazine type and cartridge

Specifications

• Brand: Area 419
• Capacity Increase: +4 rounds
• Compatible Magazines: ARC 10-round, AICS 5 or 10-round, Accurate Mag (standard bolt face and SAUM/WSM)
• Color: Red
• MPN: 419-MAG-EXT-RED
• UPC: 853675008280