Uberti Cartridge Alignment Magazine Sleeve Kit

Uberti Cartridge Alignment Magazine Sleeve Kit

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Uberti Magazine Sleeve Kit for Improved Feeding & Reliability

Improve the feeding reliability and smoothness of your compatible lever-action rifle with the SliXprings Magazine Sleeve Kit. Precision-machined to support proper cartridge alignment, this upgrade helps cartridges transition more smoothly from the magazine tube to the carrier for more consistent cycling and dependable operation.

During rapid cycling, cartridges can shift slightly as they leave the magazine tube. The SliXprings Magazine Sleeve helps keep cartridges properly centered and aligned, reducing the chance of feeding interruptions while promoting smoother, more reliable operation. It's an excellent upgrade for Cowboy Action competitors, high-volume shooters, and anyone looking to maximize the reliability of their lever-action rifle.

Manufactured from corrosion-resistant materials and precision-machined for an accurate fit, the sleeve provides years of dependable service while maintaining a clean, professional appearance.

Why Upgrade to the SliXprings Magazine Sleeve Kit?

  • ✔ Helps keep cartridges centered during feeding
  • ✔ Promotes smoother cartridge transition into the carrier
  • ✔ Improves overall feeding consistency
  • ✔ Helps reduce feeding interruptions
  • ✔ Excellent for Cowboy Action Shooting and competition rifles
  • ✔ Corrosion-resistant construction for long service life
  • ✔ Proudly Made in the USA

Features & Benefits

  • Improves cartridge alignment for smoother feeding
  • Supports more consistent cartridge movement from the magazine tube to the carrier
  • Promotes smoother, more dependable cycling
  • Helps reduce feeding interruptions during rapid operation
  • Designed specifically for compatible Uberti 1866 and 1873 rifles and carbines
  • Also fits original Winchester Model 1873 rifles chambered in .32-20
  • Precision CNC-machined for an accurate fit
  • Corrosion-resistant construction for years of dependable service
  • Ideal for Cowboy Action Shooting, competition, hunting, and recreational shooting
  • Proudly Made in the USA

Compatibility

✔ Fits

  • Uberti 1866 rifles and carbines chambered in .357 Magnum
  • Uberti 1866 rifles and carbines chambered in .38 Special
  • Uberti 1873 rifles and carbines chambered in .357 Magnum
  • Uberti 1873 rifles and carbines chambered in .38 Special
  • Original Winchester Model 1873 rifles chambered in .32-20

✘ Does Not Fit

  • .44-40 Winchester
  • .45 Colt
  • .44 Magnum
  • Uberti 1860 Henry rifles
  • Any caliber or firearm not specifically listed
  • Modified or incompatible magazine tube assemblies
Important:
The SliXprings Magazine Sleeve Kit is engineered exclusively for Uberti 1866 and 1873 rifles chambered in .357 Magnum or .38 Special and original Winchester Model 1873 rifles chambered in .32-20. Please verify your rifle manufacturer and caliber before ordering.

Ideal For

  • Cowboy Action Shooting
  • Competition rifles
  • High-volume recreational shooting
  • Routine reliability upgrades
  • Restoring smooth feeding to well-used rifles

Why Cartridge Alignment Matters

Reliable feeding begins before the cartridge reaches the carrier. By helping maintain proper cartridge alignment as rounds leave the magazine tube, the SliXprings Magazine Sleeve Kit promotes smoother cycling and more consistent operation throughout the firing sequence.

Whether you're preparing a competition rifle or improving the dependability of a favorite lever-action firearm, the SliXprings Magazine Sleeve Kit is a simple upgrade that promotes smoother feeding, more consistent cycling, and enhanced reliability every time you work the lever.

Proudly Made in the USA

Every SliXprings Magazine Sleeve Kit is precision-machined in the United States to deliver exceptional fit, long-lasting durability, and dependable performance for serious lever-action shooters.

SliXprings products proudly made in the USA

9 Product Reviews - Average rating 4.9 / 5 (Show All)
Uberti Magazine Sleeve Kit
Rick - 04/17/2026
Did the trick!
Product Review
Skid - 03/17/2026
Very good product. And it made my rifle work better.
Worth it
James - 03/08/2026
Would have been a five star if the follower was .145 thousands of an inch longer.
Must have!
Dennis Tubb - 01/14/2026
Drops right in. No gun smithing needed just as advertised. Definitely a must have!
Works great
Mark Weger - 11/03/2025
Works great and very easy to install. Reduces feeding clogs with round nose ammo.
Easy
Rose - 02/21/2023
Took about 5 minutes to install and it works great with rnfp or tcfp bullets. The Slix wrench is perfect for removing the magazine cap screw too.
Added value to my 73
Unlikely Yank - 11/19/2022
Fits perfectly and works smoothly!
Easy effective add on that works!
JB - 07/06/2022
If you have a .357 Magnum Uberti, you need this upgrade. It's a quick drop in that works exactly as described. Buy one and you won't regret it!
1873 magazine tube
Shootin Newton - 07/06/2022
Used in my. 357 Uberti, really smoothed out the action, great product and service.
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