Quote:
Originally Posted by metagod
'kick' is from the piston hitting the cylinder. it doesn't occur on my other aeg's so im not used to it.
shimming seems to be ok. i have to brace the rifle before slamming the stock to crack it open, its not something i can do without effort.
as a side note i went to chrono the gun today and it is shooting between 416 and 421 fps.
also, the nub in the magazine that came with it has already broken off and disappeared. im told I may have shot it off somehow :/
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The same motion and impact of the piston hitting the cylinder exists in every AEG manufactured. The only difference is in the TW platform and a few others who have adapted the mechanics of of their nozzle is in the impact loading. The motion should be pretty smooth. Even with an M150, their will be slight motion, no more than any other AEG.
A stable FPS is a good sign of minimal to no airseal leak, so motion of the cylinder between the chamber and buffer cap should be minimal. You can test it though by openning the dust cover, use a marker to mark a line on the cylinder and see if it moves during firing. If it does, shimming the buffer cap is required.
Now, all of this is contingent on the fact that the body does not flex. If you have a metal body that is intact, this is unlikely to occure. When the gun is set up properly, the lock bearing provides force against the buffer cap. This is countered by forward force against the pivot pin by the upper to balance the forces. Now that there are plastic bodies in TW clones, I expcet to see some flex there. If the barrel nut is not tight, it is a source for movement.
It may be that you are just hypersensitive to sound and movement and attributing what I would consider to be inconsequential to this gun.