Description
If you've got a full-size Government .45 ACP 1911 and you want it to run cleaner, cycle smoother, and feel better in your hand, this is one of the simplest upgrades you can make. The Wilson Combat 324G Custom Tune Spring Kit gives you a complete set of high tensile spring steel components designed to replace tired factory springs and let you tune the gun around the ammo you actually shoot.
Here's what you get in the kit: a 10 lb reduced power recoil spring that's ideal for lighter practice and target loads, plus an 18.5 lb extra power recoil spring that boosts feeding reliability with hotter factory ammo and +P loads. It also includes a reduced power mainspring (hammer spring) that lowers hammer tension for easier slide cycling and a noticeably lighter trigger pull, along with an extra power firing pin spring that adds firing pin tension for longer life and added drop safety.
The reason this kit makes sense is that no single spring setup is right for every load. A lot of experienced 1911 shooters keep different recoil springs on hand and swap them based on what they're feeding the gun. Light practice ammo wants a softer spring so the slide cycles fully and the brass clears the ejection port. Warm carry loads or +P benefit from the heavier spring to slow the slide down and keep things feeding clean. With both options in one kit, you can test what works and find your sweet spot without buying a handful of separate springs.
This kit is built for full-size 5 inch Government-pattern 1911s in .45 ACP only, so make sure that matches your pistol before installing. It's a great pick for anyone who likes to tinker, refresh worn springs after a few thousand rounds, or get a slightly lighter, snappier action out of a stock gun. Wilson Combat has been making top-shelf 1911 parts for decades, and these springs carry that same reputation for fit and durability.
Key Specifications
- Manufacturer: Wilson Combat
- Manufacturer Part Number: 324G
- Model: Custom Tune
- Product Type: Spring Kit
- Caliber: 45 ACP
- Fits: Full-Size 1911 Government (5 inch)
- Recoil Springs Included: 10 lb reduced power & 18.5 lb extra power
- Mainspring: Reduced power (hammer spring)
- Firing Pin Spring: Extra power
- Material: High tensile spring steel
- UPC: 874218000981
Frequently Asked Questions
What pistols does this spring kit fit?
This kit is made specifically for full-size Government-pattern 1911s with a 5 inch barrel chambered in .45 ACP. It is not intended for Commander, Officer, or other shorter-frame models, since those use different recoil spring setups. Always confirm your pistol is a full-size .45 before installing.
Which recoil spring should I use, the 10 lb or the 18.5 lb?
It depends on what you're shooting. The lighter 10 lb spring works well for soft practice and target loads that don't generate much slide velocity, while the heavier 18.5 lb spring helps with full-power factory ammo and +P by slowing the slide and improving feeding. A good rule of thumb is to watch your ejected brass; if it's barely clearing the port go lighter, and if it's flying way out there go heavier.
What does the reduced power mainspring actually do?
The reduced power mainspring lowers hammer tension, which makes the slide easier to cycle by hand and can reduce trigger pull by up to about 25 percent. Keep in mind that a lighter mainspring is a tuning choice, and many .45 shooters prefer to stay closer to a standard mainspring for the most reliable ignition with all ammo types. It's there if you want it, but it's worth testing for reliable primer strikes.
How often should I replace my 1911 recoil spring?
Most shooters change a full-size 1911 recoil spring somewhere around every 2,000 to 3,000 rounds, though hot loads and harder use can shorten that. A worn spring can cause failures to return to battery and lets the slide batter the frame, so swapping it out is cheap insurance. Refreshing the firing pin spring at the same time is a smart habit.
Do I need any special tools to install these springs?
Basic 1911 field stripping handles most of it, and swapping the recoil and firing pin springs is straightforward for anyone comfortable taking the gun apart. Changing the mainspring requires removing the mainspring housing, which takes a punch and a little care. If you've never been into the back of the frame before, follow a good 1911 disassembly guide or have a gunsmith handle it.




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