ZCI Stainless Steel Bearing Spring Guide for V3 Gearbox

A straightforward upgrade for Version 3 gearboxes, the type found in most AK and G36 pattern AEGs. ZCI's stainless steel guide replaces the standard plastic one, which can crack or wear over time, especially in guns running stiffer springs or high rates of fire.

A bearing in the base lets the spring turn freely as it compresses and releases. That stops the spring twisting and stressing the piston, which makes for smoother cycling and less wear inside the gearbox.

Key specs

• Brand: ZCI
• Fits: Version 3 AEG gearboxes
• Construction: stainless steel
• Bearing base to reduce spring twist and rotational stress
• Colour may vary depending on batch

Worth knowing: if you're replacing a guide with no bearing, or one with a thinner base, you may see a small rise in FPS. Always chrono your gun after fitting. Fitting it means opening the gearbox, so if you're not confident, ask a tech.

You might also need

• ZCI airsoft shim set (30 pieces)
• Rocket POM piston head with bearing
• Abbey gun grease LT2 (50g)
• ZCI spring guide for V2 gearboxes
• Full ZCI upgrade range