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For Crosman 17xx series pistols or Benjamin Marauder BP2220 or Woods Walker Pistols



*Now includes a .105 i.d. transfer port. 

Your choice:  Use the stock transfer port for more shots per fill, or use the .105 transfer port for more power.


The kit includes the hill blue valve assembly for Benjamin/Crosman PCP pistols.  Click on the following link for more information:



Ready to install.  No machining or other modifications are necessary.

More power than stock.  

Great upgrade for small game hunting or pest control.



Click on the following link to view a tune with the kit installed in a customers 1720T pistol  ( no buffer mod to worry with, and no regulator )

If you are adding a regulator to your pistol ( regulator not included with this kit ), click here to add a larger i.d. transfer port to your order:
 Click on the following link to add hill silicone to your order:

When installing your hill kit, if you need any assistance, just email Tim at:


hill airgun  -Making it easy for you to get the most out of your airgun.


*Special Buy – Add a hill gauge port for only 49.98 extra: Email Tim at: and I will send you an invoice through PayPal for 219.98 total. Or you can pay buy USPS money order.

Package includes:

1- hill airgun pistol blue valve assembly w/hill valve spring installed, 1- hill airgun .105 i.d. transfer port, 2- transfer port gaskets, 4- replacement o-rings ( for valve assembly – gauge port – and fill adapter housing ), 1- hill airgun hammer spring, 1- hill hammer and bolt assembly dry lube w/premium applicator brush, simple to follow installation and tuning instructions, PayPal fees, and free fast shipping within the USA.

Thanks for your business

Price: $169.98