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hill airgun High Volume Gauge Port  for Benjamin Marauder Pistol, Benjamin Woods Walker Pistol, Crosman 1720T Pistol, Crosman 1701P Pistol, Benjamin Discovery and Benjamin Maximus.


hill airgun Original

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+  Precision made from a solid piece of durable 7075 aluminum, using CNC machinery. 

+  Anodized blue to prevent corrosion.

+  The internal volume is larger than a stock gauge port, which allows for more air space inside the pressure tube.

+  Allows for a larger plenum and more power, in regulated applications.

+  The airguns gauge will thread directly into the hill airgun gauge port.

+  The gauge seals/bottoms out against the supplied o-ring that installs between the airguns gauge and the hill airgun gauge port.  No thread sealer to have to deal with and no more worries about the threads leaking air  🙂

+  Designed and built to last.


Best Quality



Optional for regulated airguns – install two :  One for reading the fill side reservoir pressure, and one for reading the regulated pressure. Fill pressure:  Installs inside the reservoir tube, between the fill adapter housing and the regulator.  Regulated pressure:  Installs in place of the factory gauge port. Allows you to SAFELY read the pressures by looking at the gauge from the SIDE or Bottom of your airgun, NOT by having to point the muzzle end of the airgun toward your eyes.


*Discovery and Maximus: You will not use the gauge adapter. Thread the gauge directly into the hill airgun gauge port.  


Package includes:  1- hill airgun high volume gauge port, 3- o-rings, paypal fees, and free fast shipping within the USA.





Price: $58.98