by CommieHunter » Thu Jul 26, 2012 9:40 am
I think NB was not quite on with his diagnosis.
My guess, honestly, would be that you have a poorer air seal than before. Here's why:
When your AEG fires, the spring presses the piston forward, compressing air. The compressed air provides resistance to the piston, while at the same time pressing the BB out the barrel. This compressed air actually provides a cushion for the piston to land on. This is why, when you dry fire, it's a much louder snap than when your AEG is shooting pellets. Additionally, if you ever get a real jam, the gun makes a dull 'whump' instead of the normal sound. Why? It's because all the air is held in, cushioning the piston.
Now, in your case, your AEG made a certain noise originally. When you changed the bucking and barrel, you may have affected the air seal. My guess is that you have an air leak at the bucking (or somewhere in the vicinity of the hop-up unit). This means that air is leaking out, providing less back pressure, which allows the piston to drop harder, causing the louder sound.
I would check into this, and maybe have someone experienced take a look and see if the bucking is installed correctly and the hop-up unit is seated like it should be.
