Wolff COLT 1911 .45 XP RECOIL CALIBRATION PAK
Recoil Calibration Paks
Recoil calibration paks are offered to allow the shooter a choice of recoil springs to calibrate the recoil function when the correct spring rating is not known. These paks offer a savings of 20% over the same purchase of individual springs. The shooter starts with the strongest spring in the pak and works down until the desired recoil function is obtained.
Stock No. 13111 – Extra Power Pak – Conventional
This pak contains 1 each of 16 Lb. factory standard spring and 1 each of 18.5, 20, 22, & 24 Lb extra power conventional recoil springs. 3 extra power firing pin springs included.