Ruger 90431 American Synthetic Black Stock Module - Low Comb, Standard LOP

The Ruger 90431 American Synthetic Black Stock Module with low comb and standard length of pull is a factory-genuine replacement or upgrade stock designed for shooters running iron sights on their Ruger rifles. If you shoot a Ruger American Rimfire, 10/22, or any other Ruger rifle equipped with the modular stock system, this module lets you dial in your sight picture and cheek weld without compromise. The low comb height positions your cheek naturally in line with standard iron sights, eliminating the need to crane your neck or shift your face around to acquire the sight picture—a simple but meaningful refinement for precise shooting at the range or in the field.

Built in durable synthetic material and finished in black, this stock module prioritizes function over flash. It's a genuine Ruger factory part, so you know the fitment and build quality are dialed in from the factory itself. Whether you're setting up a new rifle or fine-tuning an existing one, this stock module gives you the ergonomic foundation serious shooters expect.

The standard length of pull (13.75 inches) suits most adult shooters comfortably. Combined with the low comb design, it creates a natural, repeatable shooting position—crucial for accuracy-focused shooting where consistency matters. If your current stock doesn't feel quite right or you need to replace a worn module, this Ruger original is the direct solution.

Key Features

• Low comb height optimized for iron sight alignment
• Standard length of pull (13.75 inches) for typical adult shooters
• Compatible with Ruger modular stock system rifles
• Synthetic construction in black for durability and low maintenance
• Genuine Ruger factory part for assured fitment

Specifications

Frequently Asked Questions

What Ruger rifles does this stock module fit?

This module is compatible with the Ruger American Rimfire, 10/22, and any other Ruger rifle equipped with the modular stock system. Check your rifle's manual or specifications if you're unsure whether your model uses the modular system.

Why would I choose the low comb version?

The low comb height is designed specifically for shooters using standard iron sights. It positions your cheek naturally in line with the sights, which improves sight picture alignment and reduces the need to adjust your head position for consistent aim.

What is the length of pull, and who does it fit?

The standard length of pull is 13.75 inches, measured from the trigger to the back of the stock. This dimension suits most adult shooters; if you have a particularly short or long reach, you may want to verify the fit before purchasing.

Is this a genuine Ruger part?

Yes, this is a genuine Ruger factory part, ensuring proper fitment and quality with your Ruger rifle.