AEG Spring Shims - Power Tuning (Set of 5)

Tired of the guessing game with AEG springs? With no industry standard to measure spring strength or predict its impact on FPS/joules, it’s easy to overspend or get stuck with springs that don’t meet your field’s requirements. The AEG Spring Shims Set offers a smart solution for airsoft enthusiasts who need flexibility and precision tuning.

This set includes five shims with varying thicknesses: 3mm, 5mm, 7mm, 9mm, and 11mm, allowing you to adjust your spring power and fine-tune your FPS output. Say goodbye to buying multiple springs—just add or remove shims to suit different field requirements.