Ruger GP-100 / Super Redhawk Hammer Spring 12lb. $9.97 12lb. Reduced weight replacement Hammer Spring. 18412 In stock Ruger GP-100 / Super Redhawk Hammer Spring 12lb. quantity Add to cart Categories: Ruger, Wolff Gun Springs Related products Colt Government 1911 Variable Recoil Spring 9lb $16.97 CAR-15/M-4/.223 SMG,9mm Rifle Service Pak $79.97