Tuning kit BASIC for Weihrauch HW77/97

Our cost-effective basic version of the Premium Kit consists of the V-Mach piston spring made of Japanese valve spring steel, 2 POM-C guides, and shims for power regulation.

• leads to a quieter, improved recoil
• Increased precision
• Guides individually adapted to the spring
• Spring oscillation (twang) minimized
• Durable V-Mach piston spring
• High-quality workmanship
• Spring ends laid and deburred

Scope of delivery:
V-Mach piston spring
Rear spring guide
Front spring guide (top hat)
3 washers
5g V-Mach grease

Click here for installation instructions
Information about our V-Mach piston springs