WOLFF 1911 GOVERNMENT VARIABLE POWER RECOIL SPRING SET
Variable rate springs function correctly with a wider range of loads than fixed rate springs can.
Rate increases as spring is compressed; gives greater protection against frame battering, more consistent lockup and improved feeding, while allowing easier manual cycling of the action.
Recoil Calibration Pak contains 1 each of seven different springs; 16½ lb., 15 lb., 14 lb., 13 lb., 11 lb., 10 lb. and 9 lb., plus three extra power firing pin springs.
Factory weight is 16 lb.