Rated 4/5 based on 2 customer reviews
Item Number: 325
 Review Average:  
 Number of Reviews: 2
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Detailed Description


A properly tuned 1911 Auto is unquestionably the finest combat pistol in the world.

The first step when tuning your pistol is replacing the stock springs with Wilson "Custom-Tune" Springs. These springs are produced from the finest high tensile spring steel, assuring a consistently smooth action, positive ignition, and proper timing.

Once installed, your pistol will be "Custom-Tuned" for maximum reliability.

Mainspring (Reduced Power) for reduced hammer tension, resulting in easier cycling and up to 25 percent reduced trigger pull. Firing Pin Spring (Extra Power) Increased firing pin tension for longer life, and enhanced safety should the pistol be dropped. Heavy-Duty Recoil Spring (Extra Power) Increases feeding reliability when shooting factory loads. Heavy-duty for longer life. Heavy-Duty Recoil Spring (Reduced Power) A lighter spring for light practice rounds. Heavy-duty for longer life.

Custom Tune Spring Kit, Colt Officers, .45ACP

Pkg. Includes:

  • 21# Reduced Power Mainspring (Hammer Spring)
  • Firing Pin Spring
  • 24# Extra Power Recoil Spring
  • 18 1/2# Reduced Power Recoil Spring


Cautions and Installation Test Procedure

 Product ReviewsClick here to review this item
Not For RIA CS (compact)
1. The recoil springs taper down at one end, to a flat grind. Neither of the recoil springs will come close to fitting over the guide rod because of this. 2. The RIA CS has an unusually sized hole in the mainspring housing...too small for this mainspring. Not even close. 3. The firing pin spring works! This is not Wilson's fault. Perhaps one day they will make a special spring set to fit the CS. These kits work fine on all of the full sized RIAs I've used them on.
I'd buy again
Purchased this for on hand replacement parts. I doubt I will use the reduced power recoil spring but we'll see.