Redline

HPA in Airsoft has Evolved.

Engines are more efficient and run at lower pressures than in the past. Therefore the demands on the regulator have changed too.

With the lower operating pressures and higher efficiencies of modern HPA engines, the regulator must be much more sensitive in order to properly react to the smaller "pressure pulse" of each shot. This is especially true when running a remote hose since the air volume in the hose acts as an "air capacitor" further dulling the pressure pulse that the regulator sees. Failure of the regulator to react properly to this dulled (dampened) pressure pulse can be interpreted by the user as "shoot down" or a "slow refresh rate."