How to Mount Optics on AR-15: A Comprehensive Guide
Mounting optics on an AR-15 rifle can significantly enhance its accuracy and versatility. Whether you’re a recreational shooter, competitive shooter, or law enforcement officer, understanding how to properly mount optics is crucial. In this guide, we’ll walk you through the process step by step, ensuring you have a secure and reliable setup.
Choosing the Right Optic
Before you can mount an optic, you need to choose the right one for your needs. Consider the following factors:
- Objective Lens Size: A larger objective lens allows for more light and a wider field of view, which is beneficial in low-light conditions.
- magnification: Higher magnification is useful for long-range shooting, while lower magnification is better for close-range combat.
- Reticle Type: Choose a reticle that suits your shooting style and preferences.
- Material: Optics made from high-quality materials will be more durable and resistant to environmental factors.
Understanding the Mounting System
There are two main types of mounting systems for AR-15 optics: the Picatinny rail and the M-LOK system.
- Picatinny Rail: This is the most common mounting system, featuring a series of slots that allow for the attachment of various accessories, including optics. Picatinny rails are typically 1913-spec, which means they are 1.125 inches wide and have 0.22-inch spacing between slots.
- M-LOK System: This is a newer mounting system that uses a series of slots with a 0.08-inch spacing. M-LOK is designed to be lighter and more compact than Picatinny rails, making it a popular choice for lightweight rifles.
Choosing the Right Mount
Once you’ve selected your optic, you need to choose the right mount. Consider the following factors:
- Height: The height of the mount will affect the overall height of your optic, which can impact your cheek weld and eye relief.
- Material: As with optics, mounts made from high-quality materials will be more durable and resistant to environmental factors.
- Compatibility: Ensure that the mount is compatible with your rifle’s rail system and the specific optic you’ve chosen.
Mounting the Optic
Follow these steps to mount your optic on your AR-15:
- Position the Mount: Place the mount on your rifle’s Picatinny or M-LOK rail, ensuring that it is properly aligned.
- Secure the Mount: Tighten the mounting screws using a torque wrench to the manufacturer’s recommended torque setting. This will ensure that the mount is securely attached to the rifle.
- Attach the Optic: Place the optic on the mount, ensuring that it is properly aligned. Tighten the optic’s mounting screws to secure it in place.
- Check Alignment: Verify that the optic is properly aligned with the rifle’s sights and that the reticle is clear and visible.
Adjusting the Optic
Once your optic is mounted, you may need to adjust it for proper alignment and focus:
- Adjust the Turrets: If your optic has adjustable turrets, use them to zero in on your target.
- Adjust the Parallax: If your optic has a parallax adjustment, adjust it to ensure that the reticle is in focus at the desired distance.
- Adjust the Focus: Adjust the focus dial on the optic to ensure that the reticle is clear and visible.
Maintenance and Care
Proper maintenance and care are essential to ensure the longevity and performance of your optic:
- Clean the Optic: Regularly clean the lens of your optic with a soft cloth and lens cleaner to remove dust, dirt, and fingerprints.
- Check the Mounting Hardware: Periodically inspect the mounting hardware for signs of wear or damage and replace as
