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+  The original hill 12.5 Hammer Spring.
+  2.5″ long.
+  o.d.  is .48
+  Closed and ground flat ends.
+  Allows for more maximum power than stock.

 

Custom made in the USA

 

 

 

Package includes:   1- hill airgun  12.5 hammer spring, installation instructions, and free shipping to anywhere within the USA

Price: $7.71