[Azathoth]

I avoid Guarder like the plague. The ONLY guarder component I would consider is the clear hop up rubber.

All of that being said. Their was a thread posted on ASC probably a year or so ago by crunchmeister or CDN_Stalker where a systema spring snapped.

Since you are in California I suggest a Modify, prometheus or systema spring. Any of your local retailers should carry those brands

The questions that airsoftgi maybe asking is to find out if you are running bearing spring guide and piston head with bearing guide. Those componenets shouldnt cause your spring to snap. If anything they should prevent it.