Description
The factory trigger on a Ruger American is fine for what it is, but pull one after running a Timney and you notice the difference right away. This is the 641C, Timney's self-contained Featherweight replacement for Ruger American centerfire rifles, and it turns a decent factory rifle into something that breaks like glass. It ships set at a crisp 3 pounds out of the box, and you can dial it in anywhere from 2 to 4 pounds to match how you like your trigger to feel.
What Sets the Timney 641C Apart
Timney has been building triggers in the USA since 1946, and the 641C carries that reputation. The housing is machined from lightweight 6061-T6 aluminum and anodized for durability, while the sear is EDM cut and coated with Teflon-nickel for slick, consistent engagement. Each unit is precision machined, hand-fitted, and individually tested before it ships. The result is a single-stage curved trigger with a clean break, minimal creep, and no mushy takeup.
Dialing In the 641C to Your Rifle
Beyond pull weight, the 641C gives you adjustment for sear engagement so you can fine-tune the break to your taste. Folks who have installed one consistently mention how much smoother and crisper it feels next to the stock trigger, and many say they set it and forget it because it lands right where they want it. Whether you shoot your Ruger American for hunting, target work, or load development, a better trigger is one of the most noticeable upgrades you can make for tighter groups.
Installing the 641C at Home
This is a drop-in job. The 641C reuses your rifle's existing safety hardware, so you keep the original safe operation, and no gunsmith is required. Most people knock out the pins, drop it in, reattach the safety components, and are done in a few minutes. Note that this fits Gen I Ruger American centerfire rifles with a two-position safety and Glenfield Model A rifles, and it is not made for left-handed actions. If you have a very late-production or updated factory housing, check the fit before installing.
Key Specifications
- Manufacturer: Timney
- Manufacturer Part Number: 641C
- UPC: 081950006410
- Fit: Ruger American Centerfire (Gen I, two-position safety) and Glenfield Model A
- Trigger Type: Single-stage, curved
- Factory Pull Weight: 3 lbs
- Adjustable Pull Range: 2 to 4 lbs
- Adjustments: Pull weight and sear engagement
- Housing: 6061-T6 anodized aluminum
- Sear: EDM cut, Teflon-nickel coated
- Finish: Black
- Design: Self-contained, 100% drop-in
- Handedness: Right-handed actions only
- Country of Origin: Made in USA
- Shipping Weight: 0.19 lbs
What’s Included
- Timney 641C self-contained replacement trigger
- Installation instructions
Frequently Asked Questions
Will the Timney 641C fit my Ruger American?
It is designed for Gen I Ruger American centerfire rifles equipped with a two-position safety, along with Glenfield Model A rifles. It is not made for left-handed actions. Ruger has updated some factory trigger housings over the years, so if you have a very late-production rifle, check the safety pin fit before you install.
Do I need a gunsmith to install the 641C?
No. This is a self-contained, 100% drop-in trigger that reuses your rifle's existing safety hardware. Most people knock the pins out, drop the new unit in, reattach the safety components, and finish in a few minutes with basic tools like punches.
What pull weight does the Timney 641C come set at, and can I change it?
It arrives factory set at a crisp 3 pounds. You can adjust the pull weight from 2 to 4 pounds and also fine-tune the sear engagement to get the break exactly how you want it. Many owners find the factory 3 lb setting is right where they want it and never touch it.
How much better is this than the factory Ruger trigger?
The difference is night and day for most people. The factory trigger tends to feel gritty with some creep, while the 641C breaks clean with minimal takeup and consistent pull. It is one of the easiest ways to tighten up groups on an already accurate rifle.




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