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Pro-Springs(TM) For Action Tuning For The Colt Mustang .380 - Cm-456 Pro-Spring Kit For Colt Mustang .380 Action Tuning
Our editorial team reviews specifications, product data, and field-use information to keep pages accurate.
$10.99
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SKU: 080665356
Overview
This spring kit is intended for tuning the Colt Mustang .380 and related Government Model variations, with replacement springs selected to support a more precise action setup. It includes multiple spring components, among them a variable power recoil spring, hammer spring, extra power firing pin spring, magazine catch, Series 80 firing pin safety block spring, plunger tube springs, and sear spring. The kit is offered in three recoil-spring strengths, giving the user options to match the setup to different ammunition and tuning preferences. It is a practical choice for shooters focused on refining function and trigger pull rather than adding cosmetic upgrades.
Why Hunters Choose the Brownells
Replaces All
Springs for precise tuning of
Includes Three
Different recoil spring strengths for
Variable Power
A wider range of ammo
Hammer Spring
Is included to help lighten
Kit Also
Includes firing pin, magazine catch,
Key Features
- Replacement spring kit for Colt Mustang .380 action tuning
- Includes three kits with different recoil spring strengths
- Variable power recoil spring is designed for a wider range of ammo
- Hammer spring is included to help lighten trigger pull
- Contains extra power firing pin spring, magazine catch, and sear spring
- Uses specially selected replacement springs for a top-quality 1911 tuning job
Best Used For
- Owners of a Colt Mustang .380 seeking a spring replacement kit for action tuning
- Shooters wanting to tune functioning and trigger pull with selected replacement springs
- Users comparing recoil spring strengths for different ammunition setups
- 1911-style pistol owners focused on maintenance and spring refresh work
Specifications
| Compatible Model | Colt Mustang .380 |
|---|---|
| Includes Different Strength Recoil Spring Kits | 3 |
| Includes Extra Power Firing Pin Spring | Yes |
| Includes Hammer Spring | Yes |
| Includes New Magazine Catch | Yes |
| Includes Plunger Tube Springs | Yes |
| Includes Sear Spring | Yes |
| Includes Series 80 Firing Pin Safety Block Spring | Yes |
| Includes Variable Power Recoil Spring | Yes |
| Main Spring Weight | 20 lb. |
| Recoil Spring Weight | 12 lb. |
| Spring Brand | Wolff |
| Spring Count | 5 |
Pros
- Replaces all springs for precise tuning of the Colt Mustang .380 and variations.
- Includes three kits with different recoil spring strengths for tuning flexibility.
- Variable power recoil spring is designed to work with a wider range of ammo.
- Hammer spring is included to help lighten trigger pull.
- Kit also includes firing pin, magazine catch, and safety block springs.
Considerations & Trade-offs
- This is a spring kit for action tuning, so it is intended for users who are already working on a specific firearm setup rather than a general-purpose accessory.
- The kit is configured for the Colt Mustang .380, so fitment is limited to that model and its intended variations.
- It includes multiple springs with different strengths, which means the final result depends on selecting the right combination for the firearm and ammunition being used.
- Because it is a tuning kit, installation and adjustment may require more care than a simple drop-in replacement part.
Suggested Comparisons
- Pistol spring kits
- 1911 action tuning parts
- Firearm maintenance and replacement springs
- Colt Mustang .380 accessories
Suggested Accessories
- Gun cleaning kit
- Gun oil
- Small parts organizer
- Bench mat
Frequently Asked Questions
What does the Pro-Springs kit for the Colt Mustang .380 include?
According to the product description, it includes replacement springs for action tuning: a variable power recoil spring, hammer spring, extra power firing pin spring, new magazine catch, Series 80 firing pin safety block spring, plunger tube springs, and the sear spring.
Is this kit specific to the Colt Mustang .380?
Yes. The product title and description identify it as the M-456 Pro-Spring kit for the Colt Mustang .380.
Does the kit come with more than one recoil spring option?
The long description says there are three kits, each with a different recoil spring strength. For the Colt Mustang .380 version, it includes a 12 lb. extra power recoil spring.
Will this kit reduce trigger pull?
The description says the replacement springs form the basis of a top-quality 1911 tuning job and that the hammer spring lightens trigger pull. It does not provide a specific trigger pull measurement.
What kind of ammunition range is the recoil spring designed to work with?
The description says the variable power recoil spring functions with a wider range of ammo than single power springs. It does not specify exact ammunition types or loads.