How to Mount a Red Dot Sight on a Ruger 10-22

The Ruger 10-22 is a popular and versatile rifle that is commonly used for various shooting activities, including hunting, plinking, and competition shooting. One way to upgrade the Ruger 10-22 is by adding a red dot sight, which can greatly improve accuracy and target acquisition. In this article, we will discuss the step-by-step process of mounting a red dot sight on a Ruger 10-22.

Before we begin, here are the tools and materials you will need:

– Ruger 10-22 rifle

– Red dot sight

– Scope rings or mounting system

– Screwdriver or allen wrench (depending on the mounting system)

– Threadlocker (optional)

– Eye and ear protection (for safety)

Step 1: Choose the Red Dot Sight

There are numerous red dot sights available on the market, each with its own features, specifications, and price ranges. When selecting a red dot sight for your Ruger 10-22, consider factors such as battery life, reticle type, durability, and ease of use. It is recommended to select a red dot sight specifically designed for rifles and has a mounting option compatible with the Ruger 10-22.

Step 2: Select the Mounting System

There are several mounting systems available for Ruger 10-22 rifles, including scope rings, picatinny rails, and barrel-mounted options. The type of mounting system you choose will depend on your personal preference and the specific red dot sight you have selected. It’s essential to ensure that the mounting system is compatible with both your red dot sight and your Ruger 10-22.

Step 3: Remove any Existing Optics or Sights

If your Ruger 10-22 already has any optics or sights installed, you will need to remove them before mounting the red dot sight. This typically involves loosening the screws or bolts that hold the optics in place and carefully sliding them off the mounting system.

Step 4: Attach the Mounting System

Once you have removed any existing optics or sights, it’s time to attach the mounting system. If you are using scope rings, align them with the mounting holes on the rifle’s receiver and secure them using the appropriate screws or bolts. If you are using a picatinny rail, you will need to remove the receiver cover of your Ruger 10-22 and replace it with the rail, ensuring it is properly aligned and secured.

Step 5: Mount the Red Dot Sight

With the mounting system in place, it’s time to mount the red dot sight. Most red dot sights come with their own mounting brackets or plates that attach to the mounting system. Follow the manufacturer’s instructions on how to properly mount the red dot sight, ensuring it is aligned and centered on the rifle’s receiver.

Step 6: Tighten the Screws

Once the red dot sight is mounted, it’s crucial to tighten all the screws, bolts, or clamps to ensure a secure and stable attachment. Use a screwdriver or allen wrench (depending on the type of mounting system) to tighten the screws evenly and avoid over-tightening, which can damage the screws or strip the threads.

Step 7: Zeroing and Adjusting the Red Dot Sight

After mounting the red dot sight, you will need to zero it to ensure accuracy and alignment with your Ruger 10-22. To do this, you will need to follow the instructions provided by the red dot sight manufacturer, which usually involves adjusting windage and elevation settings. It is recommended to do this at a proper shooting range or in a controlled environment.

Step 8: Apply Threadlocker (Optional)

To further secure the mounting system and prevent the screws from loosening over time due to recoil or vibration, you can apply a small amount of threadlocker to the screws. Threadlocker is a type of adhesive that locks screws and bolts in place, making them less likely to loosen. However, this step is optional and depends on personal preference.


Mounting a red dot sight on a Ruger 10-22 can greatly enhance the rifle’s performance and accuracy. By following the steps outlined in this article, you can safely and effectively mount a red dot sight on your Ruger 10-22. Remember to take your time, read and follow the manufacturer’s instructions, and always prioritize safety when working with firearms.