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For the newer style Marauder Rifles Models BP2564, BP2264, and BP1764, the Discovery rifle, the Marauder pistol BP2220, the 1701P pistol, and the 1720T pistol and others.


Yes, this valve spring works in the Discovery ( Disco ) and Maximus rifles too ¬† ūüôā

+  Precision made in the USA.

+  Direct replacement for the higher rated factory valve spring.

+  Allows for the valve to be opened easier and to stay open longer, for more maximum power than stock.

+  Great for use in regulated applications too.


This is the same valve spring I use in my regulated PCP’s




Package includes:  1- hill airgun 6 valve spring, PayPal fees, and free fast shipping within the USA.

Price: $10.98