Very low FPS
I got a new Classic Army m4 X series, and it was shooting anywhere from 300-350 out of the box. The spring that was in it when I got it from revolution was not irregular.
I installed a Guarder 110 spring (irregular end to the spring guide), checked the compression (perfect) and airseal in the hop up (also perfect) and now it shoots an incredibly consistent ~200fps, and after about 10 shots it slowly climbs to 220fps and stays consistent there as well.
I swapped the CA motor the minute I fired it as it sounded like a dying cat. I have an EG1000 in there now and I also tried a Matrix 3000, neither helped.
I also tried several voltages of batteries, still no dice. Any ideas?
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