Nice to see someone joining this topic - @Mtemprell I think you'll absolutely love your new 416. I have had a long-time itch for an MP7 which is what got me here (searched for 'MP7' in case there's a super-cheap one out there - I must have one, one day)
Sadly, as mentioned elsewhere in this forum, I broke my 416 by running an HPA adapter, and being careless with the pressure setting. That's had a bad effect on my airsofting - I think I'm still in mourning for it (and hating myself for being such an idiot). (Plus I've had a bunch of knee, ankle, foot and back problems that have regularly stopped me from doing anything particularly physical, so there's that too).
So I really need to get mine fixed.
I don't know if it's something in the bolt or the trigger or the receiver that snapped off, but I found a little cube of sheared-off metal - and I had to disassemble the gun to get the bolt out of the receiver. It's been in the loft for months, I really need to bring it down to find out just what went wrong. Hopefully it's a part I can source from somewhere and replace myself.
I keep meaning to send some of my AEGs off to Luke at Negative Airsoft to get fettled / fixed, but where's the best place to send a GBBR for a fix, if it comes to that?