SliX Pin Heavy Duty MIL SPEC Firing Pin

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SliX-Pin MIL-SPEC Firing Pin for Uberti 1860, 1866 & 1873 Rifles

Improve the reliability of your Uberti 1860 Henry, 1866, or 1873 lever-action rifle with the SliX-Pin MIL-SPEC Firing Pin. Precision CNC-machined from high-strength MIL-SPEC alloy steel, the SliX-Pin is engineered to provide exceptional durability, consistent primer ignition, and dependable long-term performance.

Precision-machined and heat-treated for strength, the SliX-Pin is built to withstand the repeated firing cycles associated with Cowboy Action competition, high-volume recreational shooting, and regular range use. Its durable construction helps resist wear while maintaining reliable primer ignition over an extended service life.

The SliX-Pin is intentionally manufactured slightly longer than the factory firing pin to promote positive primer contact and help reduce ignition problems caused by normal wear, dimensional variations, or high round counts.

Whether you're competing in Cowboy Action Shooting or simply want maximum reliability from your favorite lever-action rifle, the SliX-Pin is a proven performance upgrade trusted by shooters for years.

Why Upgrade to the SliX-Pin?

✔ Premium MIL-SPEC alloy steel construction provides exceptional durability
✔ Precision heat-treated for long service life
✔ Slightly longer design promotes positive primer contact
✔ Promotes more consistent primer ignition
✔ Helps reduce light primer strikes
✔ Built for repeated firing cycles and high round counts
✔ Trusted by Cowboy Action shooters
✔ Proudly Made in the USA

Features & Benefits

Designed specifically for compatible Uberti lever-action rifles
Fits Uberti 1860 Henry, 1866, and 1873 rifles and carbines
Manufactured slightly longer than the factory firing pin
Precision CNC-machined from high-strength MIL-SPEC alloy steel
Heat-treated for exceptional strength, wear resistance, and durability
Promotes positive primer contact and consistent ignition
Helps reduce light primer strikes caused by wear or dimensional variations
Designed for dependable performance under repeated firing cycles
Improves long-term reliability in competition and recreational rifles
Ideal for Cowboy Action Shooting and high-volume use
Proudly Made in the USA

Compatibility

✔ Fits

Uberti 1860 Henry rifles
Uberti 1866 rifles
Uberti 1866 carbines
Uberti 1873 rifles
Uberti 1873 carbines

✘ Does Not Fit

Original Winchester rifles
Miroku-manufactured rifles
Chiappa rifles
Other manufacturers unless specifically listed

Important:
The SliX-Pin is engineered specifically for compatible Uberti 1860 Henry, 1866, and 1873 rifles and carbines. Minor fitting may be required depending on individual firearm tolerances, production variations, or previous action work.

Why Choose a MIL-SPEC Firing Pin?

Factory firing pins can gradually wear or become damaged after extensive use. The SliX-Pin is precision CNC-machined from premium MIL-SPEC alloy steel and heat-treated for exceptional strength, wear resistance, and durability.

Combined with its slightly extended length, the SliX-Pin promotes more positive primer contact, dependable ignition, and a long service life for serious Cowboy Action competitors and recreational shooters.

Ideal For

Cowboy Action Shooting
Competition rifles
High-volume recreational shooting
Restoration projects
Replacing worn or damaged factory firing pins
Preventive reliability upgrades

Whether you're restoring an older Uberti rifle or preparing your competition gun for another season, the SliX-Pin MIL-SPEC Firing Pin delivers dependable primer ignition, increased durability, and reliable performance with every shot.

Proudly Made in the USA

Every SliX-Pin is precision CNC-machined in the United States from MIL-SPEC alloy steel to provide exceptional strength, precise fit, dependable ignition, and years of reliable service.

SliXprings firing pin and spring for Uberti 1860, 1866 and 1873 rifles

Installation Instructions

12 Product Reviews - Average rating 4.9 / 5 (Show All)

Firing pin

Scott edwards - 12/08/2025

Read the included instructions a few times, after understanding what was needed it was easy to dress the pin down to correct length. Works like designed

GREAT PRODUCT

Rgates - 08/31/2025

The firing pin in my recently acquired M73 in 32/20 was blunt and flat faced. It also hit the primer slightly off-center. I did have to do some fitting of the OAL at the back end of the SliXsprings firing pin. With a small amount of work on the bolt, the firing pin indent is closer to center and the rounded end of the firing pin causes it to give a much better indent on the primer. The gun shoots well and I strongly recommend this firing pin.

Firing Pin

Gun Kings Armory - 08/30/2025

Works great!

Nice firing pin

CPS - 08/22/2025

Works well. Drop right in.

Firing pin

Hugh - 05/25/2025

After replacing a broken firing pin with this, nice to know i won't be having any problems at matches and on the range.

Great

Johnny Scism - 02/28/2025

Outstanding product. Easy fit and install.

SliXprings Firing Pin for Uberti Model 73 rifle

B&S Gunsmithing - 04/13/2024

I was replacing the "original" SliXprings firing pin that was from a noted "custom" gunsmith. On examination of the replacement I really expected the juncture of the pin itself to the "head" to have a more pronounced radius (larger)to eliminate the sharp edge stress concentration corner. This is exactly where the firing pin broke. This rifle was purchased used, evidently the original owner dryfired the rifle frequently.

Firing pin

Wickedjuan - 10/25/2023

I recommend this for all Italian 73's. Excellent quality

Great product.

Dutch - 06/13/2023

Replaced the original factory firing pin and spring after nearly 20 years of shooting. I was getting the occasional misfire even on Federal primers. Haven't had a misfire since installing the Slixspring pin and even shot some Fiochi factory ammo with no problem.

OWNER

WILL - 04/16/2023

GREAT

Excellent Firing Pin

Steve P - 02/17/2022

This firing pin works great in my Uberti 1873 rifle. I had no issues installing it and needed no adjustments. I was able to open up the gun, slip out the old firing pin and drop this one in. This has a much stronger feel than factory. The pin is a little longer than factory giving it a more positive primer hit. Recommend this if you shoot fast and often.

Firing Pin

Mike - 04/25/2020

No issues. Great part.