STORE › Shader Springs Image 1 of 1 Shader Springs $5.00 Made for J-Frame and Custom models from high-quality steel feeler gauge. Made for Paco in the U.S.A. Add To Cart Added! Made for J-Frame and Custom models from high-quality steel feeler gauge. Made for Paco in the U.S.A. You Might Also Like O-Rings $1.00 Armature Bar with Shader Springs $15.00 Cutback Liner Rear Binding Post $10.00 Liner Springs $5.00 Cutback Liner Armature Bar with Springs $15.00