Just realised I've had my M16 for almost 2 and a half years and I've never taken it apart further than splitting the receiver to clean the barrel or for transport. Trigger response has recently become noticeably sluggish, may be time to take the gearbox apart soon...
Yeah G&P, still shoots consistently, has lost no FPS at all, rate of fire is the same on the same battery which I got at same time as the gun. Only thing is the trigger response.
Yeah should think so gun's had a lot of use, especially on semi-auto and short bursts. I think it's done pretty well for over 2 years with stock parts still.