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. Individual Spring Pak ­contains one variable power recoil spring and one extra power ­firing pin spring. Factory weight is 16 lb.

Product Code: 42417

For more information visit: https://www.brownells.com/gun-parts/handgun-parts/handgun-slides-parts/government-model-variable-power-recoil-spring/?sku=969424017

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