Technical information

Practical A.E.G Upgrade 2006

caused by having a barrel volume that exceeds the cylinder volume). There are

other people who think that suck-back is simply BS.

Think about it, if the piston is pulled back before the bullet is out of the barrel,

there is a possibility for a “drag-back” effect to occur. The degree and extent to

which the FPS of the current bullet is affected is something we cannot tell

without going through a lab experiment.

Another potential problem is, if the bullet is in the barrel while the piston is

pulling back, the bullet may serve as an obstacle that blocks incoming air

passage. If the cylinder fails to receive sufficient air from other channels (such

as from the auxiliary ports), the FPS of the NEXT bullet may be affected. Again,

we can’t tell the exact effect without carrying out an in-depth lab assessment.

Frankly, whether or not suck-back is a myth doesn’t really matter. Since

suck-back is believed to occur due to an improper air volume balance, all that

you need to do is to follow the rule of thumb – that is, ensure that the cylinder

volume exceeds the barrel volume. It doesn’t hurt in any case to have larger

cylinder volume, does it?