Upgrade your plastic spring guide to the FPS Version 2 Ergal Ball Bearing Spring Guide with round pins.
Plastic spring guides can break easily, especially on upgraded guns.
If you want your airsoft gun to outshine the competition, you absolutely need a metal spring guide.
The ball bearings on this model are especially good for upgraded guns because they help reduce tension on the spring by allowing it to spin freely,
thus reducing the probability of the spring breaking.
Each FPS spring guide is made of ERGAL and it is also anodized for smooth surface finish.