Airtech Studios FPS Adjustment Spring Spacers for Airsoft AEG Rifles Krytac, VFC, ASG

Features

• Universally fits most AEG Rifles
• Allows customization of FPS incrementally without changing springs or other internals
• The more shims, the more power
• Up to 20 FPS increase

Universal Spring Shims are used to alter the power of your AEG according to how much power you are looking for.

The shims are designed to slide onto the spring guide inside the gearbox to create tension in the existing spring. The more shims the more tension and more power.

4 shims of various sizes are included to fine-tune to the desired power you require.

Shim 1 - Increase by 5 FPS
Shim 2 - Increase by 10 FPS
Shim 3 - Increase by 15 FPS
Shim 4 - Increase by 20 FPS

The shims are designed to be of various sizes that can be combined to tailor the FPS output.
Manufacturer: Airtech Studios

Specifications:

Application: Krytac, VFC, ASG AEGs that use standard type AEG Springs / Spring Guides