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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 ) rifles too ¬† ūüôā

+  Custom made in the USA.

+  Direct replacement for the higher rated factory valve spring.

+  Allows for more maximum-peak power than stock.

+  Rated at approximately 6 lb./in.

+  Great for use in regulated applications.


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


Package includes:  1- 6 valve spring, and free shipping within the USA.

Price: $9.55