S&W 457 production changes

[Holden6v8]

Sorry: Sprinco.com is correct spelling

 

[ACEd]

Sprinco.com has great quality double springs in production for 457. Blue painted like factory but better springs....

My question was with respect to availability or lack therof of the early single recoil springs from the 4516/4516-1 and 4013/4014/4053/4054. Thanks to BLUEDOT37 for the heads up on Wolff for the single springs.
The 457 never had a single recoil spring as far as I can tell and both of the factory SW springs in the dual spring setup are still available.