Stronger, Smoother Top Lever Spring for 1878 TTN Shotguns
A smoother and more durable replacement for the stiff, unevenly finished factory-style top lever spring.
The SliX TTN Top Lever Spring was developed for 1878 TTN shotguns used by Classic Cowboy competitors and other shooters who want dependable lockup with reduced top-lever opening pressure.
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Music-wire construction
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Reduced opening pressure
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Made in the USA
Features and Benefits
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Improved replacement for the original cast top lever spring
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Designed specifically for 1878 TTN shotguns
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Provides smoother and more dependable operation
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Helps reduce top-lever opening pressure
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Supports positive and reliable action lockup
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Manufactured from durable music-wire spring stock
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Heat set after forming to help retain spring tension
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Proudly made in the USA
Field Tested by TTN Shooters Field testing by local TTN shooters demonstrated solid action lockup along with a noticeable reduction in the pressure required to operate the top lever.
Music-Wire Construction The spring is formed from music-wire stock and then heat set to help reduce subsequent set or loss of spring power. Correct installation is essential to maintaining its effectiveness.
Critical Spring Orientation
The two legs of the spring are not the same length. Correct orientation is required for the spring to operate properly.
Long Spring Leg
The longer leg must be positioned in the detent located in the frame of the block.
Short Spring Leg
The shorter leg fits into the top lever drum detent.
The Long Leg Must Contact the Frame The difference in leg length is small but important. Installing the spring backward can prevent proper operation or damage the spring during installation.
Some Individual Fitting Is Required This is not a one-size-fits-all drop-in spring. Pressure, dimensions, and machining tolerances can vary between production runs and individual TTN shotguns. Improper installation can damage the spring or reduce its effectiveness.
Read Before Installation
Installation should be performed by someone familiar with the TTN top lever and spring system. If you are unfamiliar with the mechanism, have the spring fitted by a qualified gunsmith or shotgun tuner.
View TTN Spring Installation Instructions
Installation and Function Testing Make certain the shotgun is completely unloaded before beginning work. After installation, carefully verify top-lever movement, action lockup, and all safety functions before using live ammunition.
