FX Airguns DRS SHP Power Plenum upgrade Kit FX21782 The largest plenum for the DRS series with an huge amount of 63cc of air to gain the maximum power out of your FX DRS. It features a connection to mount a angled manometer bracket to fit a pressure gauge on the plenum to monitor the output pressure of your regulator. The plenum is the chamber where the exact amount of regulated compressed air is held that is used to propel one projectile. So, if you’re planning to shoot large projectiles, use longer barrels or even shoot projectiles at higher speeds, you’ll need to use a high-capacity plenum. This SHP (Super-High Power) plenum has a capacity of 63 cc, which is considerably bigger than the HP (High Power) plenum that’s featured in the FX DRS SHP. The FX DRS power plenum kit allows you to shoot projectiles with considerably more speed. The plenum on the FX DRS air rifle is located on the bottom of the stock, right in front of the trigger guard. This means it can easily be removed and replaced with this FX DRS SHP power plenum kit.
