Nordic Components MXT +4 Extension Kit 12 Gauge – Black

The Nordic Components MXT +4 Extension Kit is a magazine tube kit for 12 Gauge shotguns that increases magazine capacity by four rounds. It is intended for use with MXT-designation magazine tubes and is finished in black. This kit is used in conjunction with the 12 gauge extension tube nut and requires that nut for installation.

Key Specifications

• Designed for 12 Gauge magazine tubes.
• This product is a Magazine Extension.
• Model designation is MXT.
• Adds 4 rounds to existing magazine capacity.
• Capacity is listed as 4-Round.
• Finish color is Black.
• Intended for use with the 12 gauge extension tube nut; this kit requires the extension tube nut.
• Product subcategory is Magazine Parts.

The MXT +4 Extension Kit provides a straightforward capacity increase in a compact, low‑profile package. Its black finish integrates cleanly with standard MXT tube components, and when used with the proper 12 gauge extension tube nut it offers a simple way to add four rounds to a compatible magazine tube. Choose this kit when you need a direct, hardware-level solution for modest capacity expansion while maintaining a practical setup.