[Mitchell12]

I've had my m3 for a little less then a year and it had been firing perfectly for the entire time I had it. I am by no means gentle with this gun but it showed no warning or deterioration prior to breaking.

The pump handle is able to slide back and forth with no resistance as if someone has half cocked it by accident. The handle will not return fully forward and will not "catch" the spring again as it would normally if someone inexperienced used it.

Can anyone give me some ideas? I know my way around aeg's moderatley well but this is much different and just getting to the insides of this has been a challenge and I still haven't been able to dismantle it fully.