Our custom 15lb. and 17lb. hammer springs are made with optimal tension for smoothness and reliability. Kit includes two 15lb. and one 17lb. hammer springs and one increased tension cross pin latch spring. They fit both the old and new model Ruger Vaquero/Blackhawk, Bisley Vaquero, Bisley, Single Six, Super Blackhawk and Super Blackhawk Hunter.
The longer 15lb. and 17lb. spring is for the standard hammer strut. The shorter hammer spring in the kit is for the Vaquero's and Blackhawk's with the internal locking mechanism. Many of our customer's that reload with Federal primers use the shorter spring in their standard Vaquero's. In our opinion, the shorter spring installed on a standard strut reduces it to approximately 12lb.
The plain color springs are 15lb. and the blue spring is 17lb.