51818 Wolff KIMBER Ultra Carry RECOIL SPRING 18LBS

KIMBER UC STD RECOIL SPRING SET 18 LBS Factory Standard             

Kimber Ultra-Carry .45ACP

•Factory hammer spring (mainspring) is Colt Officers type rated at 23 pounds. 
•Magazine springs are the same as Colt. 
•All other misc springs are the same as the Colt Government

Recoil springs are available with load-rated specifications. Each load-rated recoil spring package includes an extra power firing pin spring. 

•Reduced Power…: None Available
•Factory Standard.: 18 Lb.
•Extra Power………: 21 Lb.