Uberti 1860, 1866 & 1873 Lever and Carrier Spring Kit
Improve the smoothness, consistency, and long-term reliability of your Uberti 1860 Henry, 1866, or 1873 lever-action rifle with the SliXprings Lever & Carrier Spring Kit. This matched performance spring set is engineered to reduce unnecessary action resistance, promote smoother cycling, and help limit wear on critical lever, carrier, and cam surfaces.
The factory-style lever and carrier springs control two important action functions. One spring applies pressure to the lever, while the other controls movement of the carrier system. Excessive spring tension, worn spring tabs, or damaged factory springs can make the action feel heavier and may increase friction against mating components during repeated cycling.
SliXprings performance springs are manufactured from premium .076-inch music wire alloy. Redesigned spring geometry and an increased radius at the spring tab help distribute stress more evenly, accommodate normal firearm wear and manufacturing variations, and provide dependable spring tension through extensive use.
Each kit includes one lever spring, one carrier spring, and two hardened mounting screws. Minor fitting is required so the springs can be adjusted for the individual rifle and its existing action components.
Why Upgrade Your Lever & Carrier Springs?
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✔ Promotes smoother, more consistent lever-action cycling
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✔ Helps reduce unnecessary resistance during lever operation
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✔ Helps reduce wear on critical cam and action surfaces
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✔ Better accommodates normal wear and manufacturing tolerances
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✔ Redesigned spring-tab radius helps distribute stress
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✔ Manufactured from premium .076-inch music wire alloy
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✔ Approximately 3.5 times greater fatigue resistance than standard factory springs
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✔ Tested through more than 900,000 lever cycles
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✔ Includes two hardened replacement mounting screws
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✔ Designed for competition and high-volume recreational shooting
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✔ Proudly made in the USA
Uberti Rifle Compatibility
Fits
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Uberti 1860 Henry rifles
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Uberti 1860 Henry carbines
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Uberti Model 1866 rifles
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Uberti Model 1866 carbines
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Uberti Model 1873 rifles
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Uberti Model 1873 short rifles
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Uberti Model 1873 sporting rifles
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Uberti Model 1873 carbines
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Compatible factory and competition rifles requiring minor fitting
Does Not Fit
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Original Winchester rifles
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Miroku-manufactured Winchester rifles
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Chiappa lever-action rifles
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Non-Uberti reproductions
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Other lever-action models not specifically listed
Important:
This kit is engineered specifically for Uberti-manufactured Model 1860 Henry, 1866, and 1873 rifles and carbines. Minor fitting is required. Individual firearm tolerances, production variations, component wear, replacement parts, short-stroke systems, and previous action work may affect installation and final spring adjustment.
Signs Your Rifle May Need New Lever or Carrier Springs
Worn, damaged, excessively stiff, or improperly adjusted springs can affect the feel and consistency of the action. Replacement may be appropriate when a compatible Uberti rifle displays one or more of the following conditions:
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The lever requires excessive effort to cycle
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The action feels rough, uneven, or inconsistent
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The carrier movement feels sluggish or excessively resistant
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The original springs are bent, cracked, worn, or damaged
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Spring tabs show visible wear at their contact surfaces
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The action becomes noticeably heavier during rapid shooting
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Lever or carrier operation differs from its previous feel
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The rifle has accumulated a high competition round count
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The action is being rebuilt, restored, or professionally tuned
Heavy or inconsistent cycling can also be caused by fouling, damaged components, incorrect timing, worn cams, improper carrier adjustment, loose screws, or previous action work. The complete action should be inspected before replacement springs are fitted.
Product Specifications
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Product Type |
Matched lever and carrier performance spring kit |
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Primary Application |
Uberti 1860 Henry, 1866, and 1873 rifles and carbines |
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Spring Material |
Premium music wire alloy |
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Wire Diameter |
.076 inch |
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Spring Design |
Redesigned geometry with increased spring-tab radius |
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Fatigue Resistance |
Approximately 3.5 times greater than standard factory springs |
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Cycle Testing |
More than 900,000 lever cycles without measurable loss of spring tension |
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Mounting Hardware |
Two hardened replacement mounting screws |
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Installation |
Minor fitting and final spring adjustment required |
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Country of Origin |
Proudly made in the USA |
How the Lever and Carrier Springs Work
The lever and carrier springs apply controlled pressure to separate parts of the rifle’s action. As the lever is cycled, these springs help control movement of the lever and carrier assemblies so the action can feed, chamber, fire, extract, and eject cartridges consistently.
Lever Is Cycled → Springs Control Lever and Carrier Movement → Carrier Positions Cartridge → Action Returns to Battery
The springs must provide enough pressure for dependable operation without adding excessive friction or unnecessary resistance. Properly fitted SliXprings components help balance reliable spring pressure with smoother action movement.
How the Redesigned Spring Geometry Helps
Factory-style lever and carrier springs repeatedly flex while their tabs move against mating action surfaces. Excessive spring tension or concentrated stress at the tab can contribute to a heavier action feel, spring fatigue, and wear on the contacted components.
SliXprings uses premium music wire and redesigned spring geometry to provide the pressure needed for dependable operation while reducing unnecessary resistance.
The increased radius at the spring tab distributes contact and bending stress across a broader area. This design helps reduce stress concentration, accommodate normal wear, and limit unnecessary wear on critical cam and action surfaces.
Engineered for Fatigue Resistance
Lever-action competition rifles may be cycled thousands of times during practice and match use. Repeated flexing can eventually weaken conventional springs or change their tension.
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Manufactured from premium .076-inch music wire alloy
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Approximately 3.5 times greater fatigue resistance than standard factory springs
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Tested through more than 900,000 lever cycles
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No measurable loss of spring tension during the stated cycle testing
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Designed for high-volume competition and recreational use
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Engineered to maintain consistent spring pressure over extended service
Why the Hardened Mounting Screws Matter
The lever and carrier springs are secured by screws that must withstand repeated installation, adjustment, and action movement. Original screws may become worn, damaged, distorted, or difficult to remove after years of service.
Each SliXprings kit includes two hardened replacement screws so the new springs can be installed with fresh mounting hardware. Use correctly fitting tools and avoid overtightening the screws during installation.
Kit Includes
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One SliXprings performance lever spring
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One SliXprings performance carrier spring
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Two hardened replacement mounting screws
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One complete spring kit for a compatible Uberti rifle
Minor Fitting and Adjustment Are Required
The lever and carrier springs must be fitted and adjusted to the individual rifle. Final spring pressure can be affected by normal manufacturing tolerances, component wear, replacement parts, previous action work, and competition modifications.
Proper fitting allows the springs to provide sufficient pressure for reliable action function without creating unnecessary resistance or excessive contact against the lever, carrier, or cam surfaces.
Do not remove more material than necessary. Springs that are fitted too aggressively may not provide enough pressure for dependable operation.
Installation & Safety Notes
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Confirm that the rifle is completely unloaded.
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Remove all ammunition from the work area.
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Follow the firearm manufacturer’s disassembly procedures.
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Review the SliXprings installation instructions before beginning.
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Inspect the original springs, screws, cams, lever, carrier, and contact surfaces.
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Check for previous fitting, action work, or replacement internal parts.
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Identify the correct location for the lever spring and carrier spring.
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Install the springs using the supplied hardened screws.
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Fit and adjust each spring according to the provided instructions.
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Confirm that the lever and carrier move freely without binding.
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Verify proper cartridge feeding, carrier timing, and action return.
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Confirm that the action closes fully and operates consistently.
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Perform all appropriate safety and function checks before live-fire use.
Professional installation recommended: Shooters unfamiliar with Uberti action work should have the kit installed by a qualified gunsmith or experienced lever-action rifle tuner. Incorrect fitting or insufficient spring tension may cause unreliable action operation.
Installation Instructions
Review the complete SliXprings Lever & Carrier Spring installation instructions before fitting or installing the springs. The PDF opens in a new browser tab.
View Lever & Carrier Spring Instructions
Ideal For
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Cowboy Action Shooting
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Competition lever-action rifles
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Uberti 1860 Henry, 1866, and 1873 rifles
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High-volume practice and recreational shooting
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Replacing worn, damaged, or excessively stiff factory springs
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Promoting smoother action cycling
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Reducing unnecessary pressure against action surfaces
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Maintaining high-round-count competition rifles
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Rifle restoration and performance tuning
Frequently Asked Questions
Which rifles fit this lever and carrier spring kit?
The kit is designed for compatible Uberti-manufactured 1860 Henry, 1866, and 1873 rifles and carbines.
Will this kit fit an original Winchester rifle?
No. It is not designed for original Winchester 1860, 1866, or 1873 rifles.
Will it fit a Miroku Winchester?
No. The springs are engineered specifically for compatible Uberti-manufactured rifles.
Will it fit a Chiappa lever-action rifle?
No. This kit is not designed for Chiappa lever-action rifles.
What is included in the kit?
Each kit includes one lever spring, one carrier spring, and two hardened replacement mounting screws.
What do the lever and carrier springs do?
They apply controlled spring pressure to the lever and carrier systems, helping regulate action movement and support consistent cycling.
Will these springs make my rifle easier to cycle?
When correctly fitted, they are designed to reduce unnecessary spring resistance and promote smoother cycling while maintaining the pressure needed for dependable operation. Final action effort also depends on the rifle’s condition, timing, lubrication, and other internal parts.
Why is the spring-tab radius important?
The increased radius helps distribute stress and contact across a broader area. This reduces stress concentration and can help limit wear on the spring and mating action surfaces.
How durable are the springs?
They are approximately 3.5 times more resistant to fatigue than standard factory springs and have been tested through more than 900,000 lever cycles without measurable loss of spring tension.
Why are new mounting screws included?
Original screws may be worn or damaged from previous service. The included hardened screws provide fresh mounting hardware for the replacement springs.
Is fitting required?
Yes. Minor fitting and final spring adjustment are required so the springs provide suitable pressure for the individual rifle.
Will the springs fit a short-stroked competition rifle?
They may be used in compatible competition rifles, but short-stroke systems, replacement parts, and previous action work can affect fitting and adjustment. Complete function testing is required after installation.
Can I install the kit myself?
Installation may be completed by someone experienced with Uberti lever-action mechanisms. Professional installation is recommended for shooters unfamiliar with spring fitting or action timing.
Can these springs correct damaged action components?
No. Replacement springs should not be used to compensate for damaged cams, worn carriers, incorrect timing, bent parts, or other mechanical defects. Those conditions require inspection and repair.
Are installation instructions available?
Yes. A link to the SliXprings Lever & Carrier Spring installation instructions is provided above.
Are these springs made in the USA?
Yes. Every SliXprings Lever & Carrier Spring Kit is manufactured in the United States.
Whether you are restoring a well-used rifle, replacing worn factory springs, or preparing a competition-ready Cowboy Action firearm, the SliXprings Lever & Carrier Spring Kit provides a durable, precision-engineered upgrade designed to promote smoother cycling, consistent action operation, and reduced wear on critical components.
Manufactured from premium .076-inch music wire alloy and supplied with hardened replacement screws, this matched spring kit is built for shooters who expect dependable performance from their Uberti 1860 Henry, 1866, or 1873 rifle.
Proudly Made in the USA
Every SliXprings Lever & Carrier Spring Kit is manufactured in the United States from premium music wire alloy and engineered for consistent spring tension, exceptional fatigue resistance, and years of dependable service.
