TTN 1878 SliXPin Firing Pin Kit
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TTN 1878 SliXPin Firing Pin Kit

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SliXPin Performance Firing Pin Kit for TTN & Cimarron 1878 Coach Guns

Restore dependable ignition and extend the service life of your TTN or Cimarron 1878 Coach Gun with the SliXPin Performance Firing Pin Kit. Designed specifically for side-lock 1878 shotguns, this upgraded system improves primer strike consistency while helping compensate for worn or pitted hammer faces.

Unlike standard replacement firing pins, the SliXPin design features an extended firing pin that helps eliminate the need for hammer welding or re-facing in many worn shotguns. The result is improved ignition reliability with minimal modification.

Developed alongside experienced Cowboy Action shooters and field-tested through countless matches, the SliXPin system has earned a reputation for dependable performance and long service life.

Features & Benefits

  • Improves primer strike consistency
  • Helps restore reliable ignition in worn shotguns
  • Extended firing pin compensates for worn hammer faces
  • Often eliminates the need for hammer welding or re-facing
  • Precision-machined for dependable performance
  • Designed specifically for TTN and Cimarron 1878 Coach Guns
  • Field-tested by Cowboy Action shooters
  • Proudly Made in the USA

Premium Spring System

Each kit includes two tuned stainless steel firing pin springs designed to complement the extended firing pins and provide consistent primer ignition.

  • Premium stainless steel construction
  • Excellent corrosion resistance
  • Heat stress-relieved for extended service life
  • Precision-ground flat ends
  • Reversible spring design
  • Optimized for improved firing pin reach and primer impact
  • Positive snap-fit retention on the firing pin shoulder

Compatibility

✔ Fits

  • TTN Model 1878 Coach Guns
  • Cimarron 1878 Coach Guns manufactured by TTN
  • 12 Gauge models
  • Cowboy Action competition shotguns

✘ Does Not Fit

  • Stoeger Coach Guns
  • Norinco JW-2000 shotguns
  • CZ side-by-side shotguns
  • Firearms other than TTN/Cimarron 1878 models
Important:
The SliXPin kit is engineered specifically for TTN Model 1878 and TTN-manufactured Cimarron 1878 Coach Guns. Although designed to be as close to a drop-in installation as possible, minor fitting may be required due to manufacturing tolerances and firearm wear.

Why Upgrade to the SliXPin System?

  • ✔ Improves primer strike consistency
  • ✔ Helps restore worn hammer geometry
  • ✔ Often eliminates hammer welding
  • ✔ Stronger, longer-lasting firing pins
  • ✔ Tuned stainless steel spring system included
  • ✔ Proven by Cowboy Action competitors

Package Contents

  • Two precision-machined SliXPin firing pins
  • Two tuned stainless steel firing pin springs
  • Complete matched firing pin system

Installation Notes

Professional installation is recommended for shooters unfamiliar with TTN 1878 action work. Individual firearm wear and manufacturing tolerances may require minor fitting for optimum performance.

The SliXPin system was engineered to require as little fitting as possible while providing the reliability improvements serious Cowboy Action shooters demand.

Proudly Made in the USA

Every SliXPin kit is precision manufactured in the United States using premium materials and strict quality standards to deliver dependable ignition and long service life.

SliXprings products proudly made in the USA

Whether you're restoring an older shotgun or preparing a dedicated Cowboy Action competition gun, the SliXPin Performance Firing Pin Kit provides a durable, proven solution for improving primer ignition, extending service life, and restoring confidence in every shot.

8 Product Reviews - Average rating 4.6 / 5 (Show All)
Works Great
Lead Hammer - 07/04/2026
Works Great
Great
Edward - 09/28/2025
Bought and installed these Saturday and shot today. Worked great saved originals for backup
Slix pin reveiw
Loy peters - 03/18/2025
Really good product!
Work well
High Road - 12/26/2024
Borrowed a 9/32", 1/4" drive socket from my neighbor and all went thereafter. This was an older TTN and I hope the new pins don't mushroom.
solved my problem
Paul Langley from Texas - 02/16/2022
This pins worked great. I had to make a small adjustment on one to fit my shotgun but after that i get 100% ignition where before i didnt.
TTN pin
Paul - 02/08/2022
Works in my TTN 90% of the time. The 10% of the time that it does not makes the product unacceptable to me. Put the stock pins back in, and have never had a misfire.

Reply from Slixprings:

As clearly stated on the product webpage. (The manufacturers want to clearly point out that if you have little or no idea how these springs are supposed to fit and work, get help or find someone who does know how to install them. Due to all the variations in machining tolerances, this is not a “one-size-fits-all-perfectly” drop-in set. It may take some individual fitting.)

Godsent
Michael Jones - 01/02/2022
So happy with the firing pins .
Works great
Freddie Lark - 04/29/2020
I have consistent ignition now. No misfires anymore.
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