Giving it just a little more.....
This extension is well made just like their blowguns and gives the 4ft. or 5ft. standard .625 magnum blowgun more accuracy. I don't think it gives it any more power, in fact, I think it looses a little since it just slips on to the blowgun with no o rings to seal it.Just my observation. Don't have any instrumentation prove it, but a fun piece to add for better accuracy anyways..