Harris No. 2 Adapter Flange Nut

The Harris No. 2 Adapter provides a high-strength mounting point for rifles with hollow or thin-walled synthetic fore-ends. By installing this large flange nut inside your stock, you create a secure anchor for a sling swivel stud that will not pull out under the tension of a bipod. This hardware is the essential solution for converting a basic factory stock into a stable, field-ready platform for precision shooting.

Key Specifications

• Flange Dimensions: 5/8 inch wide by 1 3/8 inch long for maximum internal support.

• Compatibility: Designed for hollow plastic, synthetic, or thin-walled wood fore-ends.

• Thread Interface: Features a 10-32 threaded hole for standard swivel studs.

• Materials: High-strength, heat-treated steel construction.

• Included Components: Flange nut, mounting stud, and necessary washer.

• Origin: Manufactured in the USA.

Benefits & Use Cases

If you own a modern rifle with a lightweight synthetic stock, such as a Remington 700 ADL, the fore-end material is often too thin to reliably support a standard screw-in swivel stud. The No. 2 Adapter solves this by spreading the physical load across the large internal surface area of the flange, preventing the stud from stripping or damaging the stock when you apply "pre-load" to your bipod.

This adapter is perfect for shooters who require a permanent, rock-solid connection for long-range stability. It ensures that your bipod remains perfectly aligned and movement-free, which is critical for consistent shot placement in rugged terrain. Whether you are upgrading an older rifle or finishing a custom build, the No. 2 provides the structural integrity needed for a professional-grade setup.