V-Mach FAC Mainspring + Guide for Weihrauch HW77 | HW97

The Mainspring is a core performance component in any spring‑piston air rifle, directly shaping the firing cycle, power delivery, and long‑term shooting consistency.

Premium custom FAC Mainspring and Guide from V‑MACH, engineered specifically for the Weihrauch HW77 and HW97 models, ideal for shooters seeking a smoother, more refined, and competition‑grade shooting experience.

A high‑quality mainspring provides cleaner compression, reduced internal friction, and a more stable release of energy.

This results in a firing cycle that feels smoother, quieter, and far more controlled.

For demanding shooters, this means tighter velocity spreads, reduced vibration and “twang”, and improved shot predictability, key factors for maintaining accuracy at medium and long ranges.

A well‑crafted spring also maintains its characteristics over thousands of shots, keeping performance consistent.

The Guide is included.

Upgrading to a premium mainspring can transform the rifle’s overall feel, enhance stability, and deliver the repeatability that precision‑focused shooters rely on.

Compatibility:

• Weihrauch HW77
• Weihrauch HW97

In both 4.50mm (.177") and 5.50 mm(.177").

About V‑MACH:

V‑Mach is renowned for producing hand‑crafted, precision airgun components in the UK, designed to push performance beyond factory specifications.

Their springs, guides, piston seals, and tuning kits are built with tight tolerances and premium materials, resulting in smoother firing cycles and more consistent velocities.

Each component is individually finished for optimal fit; engineered for reduced vibration, cleaner shot release, and improved accuracy, and designed to maintain stability over extensive use.

Top competitors and enthusiasts choose V‑Mach because these upgrades deliver a more refined, predictable, and high‑performance shooting experience, exactly what matters when precision and repeatability are essential.

Seja o primeiro a avaliar este produto !