I'm an AEG guy, so when it comes to gas guns I'm pretty clueless.
I was wondering why my nozzle wasn't retracting like it used to, and I took my gun apart and found a broken spring. I assume the spring is what pulled the nozzle back, but is it necessary? I ask this because my USP is stil cycling without problems and shooting fine. The condition of the spring tells me it was probably like this for a while and I didn't notice.
