Warne MESIG54GR Magazine Extension for Sig P320, +5 Rounds

The Warne MESIG54GR is a magazine extension designed for Sig P320 9mm magazines. It increases magazine capacity by five rounds while maintaining reliable feeding and a low-profile footprint. Machined from 6061-T6 aluminum and finished in hardcoat anodized gray, the extension is built for durable everyday use. The profile includes ergonomic shaping and finger grooves to aid insertion and magazine removal.

Key Specifications

• The model is MESIG54GR.
• Constructed from 6061-T6 Aluminum.
• Finished with a hardcoat anodized gray surface.
• Increases magazine capacity by +5 rounds.
• Compatible with 9mm magazines as specified for fit.
• Designed to fit Sig P320 magazine bodies.
• Features an ergonomic shape with finger grooves for easier handling and removal.

Whether used for everyday carry, range sessions, or competition, the MESIG54GR offers a straightforward, durable way to increase capacity and improve grip on the magazine. Its machined construction and anodized finish deliver long-term service while remaining compact and unobtrusive in use.