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For Benjamin Marauder BP2220 or Crosman 17xx series Pistols and Benjamin Maximus Rifles


+  Excellent power upgrade.
+  Allows for a longer hammer stroke – more power.
+  Easy to adjust for a flatter shooting and more powerful shot string, for lots of accurate shots per fill.
+  Valve body and valve cap are precision CNC machined from a solid piece of aluminum – then are anodized blue.
+  The valve body and end cap both have a large internal volume, for more air capacity. 
+  Works with the factory or hill transfer ports and hammer springs.
+  Flows more air than a factory valve, for more power with lower or higher – comparable fill pressures.
+  Durable – built to last.
+  No internal o-rings – that can deteriorate, fail, or create negative issues and no expensive parts to have to replace.
+  Can be used in an otherwise stock airgun, or can be used to help create the ideal tune in your customized airgun project.


When installing your hill valve assembly, if you have any questions, just send Tim an email at:

Click on the following link to add hill silicone fluid to your order:


Package includes:  1- hill complete valve assembly (for Pistol or Maximus ), simple to follow installation instructions, and free shipping within the USA


Price: $119.98