Ssx-23 low power

[Johnboy]

I've got a ssx23 with three mags, two of the mags average 237fps on .36 bbs but one is only doing 108fps with the same gas and BBs, what could be causing low power from one mag?

[Chev Chelios]

Swap the release valve over to another mag and test. If all good swap the gas router (the rubber bit on top) and test again. It should be one of these parts giving you the issue. The router can be shimmed and a sticky valve can be cleaned. Let me know if you find the offending part. 

[Johnboy]

Was the valve, thank you 

[Chev Chelios]

23 minutes ago, Johnboy said:

Was the valve, thank you 

 

Good stuff. You get the valve sorted? 

[Johnboy]

1 hour ago, Chev Chelios said:

 

Good stuff. You get the valve sorted? 

Yup, was just stiff