Guarder Airsoft Gearbox AEG Shim Set Stainless Steel

Guarder Airsoft Gearbox Shim Set – Stainless Steel

If you’re rebuilding or fine-tuning an AEG gearbox, a decent shim job makes a massive difference — and the Guarder Gearbox Shim Set from Bullseye Country Sport is one of those essential wee upgrade kits every airsoft tech should have lying on the bench.

Designed to help properly space and align your gearbox gears, these shims reduce unnecessary friction, improve efficiency and help your gearbox run smoother and quieter. A badly shimmed gearbox can lead to extra wear, poor performance and stripped gears, so getting this part right is well worth the effort.

This set is made from durable stainless steel, giving better long-term wear resistance than softer low-quality shims. Inside the pack you get 18 shims in varying thicknesses, allowing you to properly dial in gear spacing for custom builds, repairs or maintenance work. The set includes a mix of large and small diameter shims in different thicknesses, giving you plenty of flexibility whether you’re building a high-speed setup, torque build or standard skirmish rifle.

At Bullseye Country Sport, we reckon this is one of those cheap but genuinely important upgrade parts that every airsoft tech or tinkerer should keep in the toolbox.

Why It’s Great

Helps improve gearbox efficiency and smoothness

Reduces gear friction and internal wear

Made from durable stainless steel

Ideal for gearbox rebuilds, upgrades and maintenance

Includes multiple shim sizes and thicknesses

Suitable for most standard AEG gearboxes

Essential part for proper gearbox shimming

Quick Specs

Material: Stainless Steel

Total Shims Included: 18

Large Diameter Shims: 0.15 mm × 6

Small Diameter / Thin: 0.3 mm × 6

Small Diameter / Thick: 0.5 mm × 6

Brand: Guarder

Product Type: Airsoft Gearbox Shim Set

Same Day Dispatch on All Orders Placed Before 3pm Monday – Friday

For Airsoft Use Only, cannot be Adapted or Modified for any other purpose

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