Mounting a scope on your AR-15 can significantly enhance your accuracy and shooting experience. However, it's crucial to do it correctly to ensure a secure and reliable setup. This comprehensive guide will walk you through the process, covering everything from choosing the right mounts to zeroing your scope.
Choosing the Right Scope Mount
Before you even think about attaching anything to your rifle, selecting the appropriate scope mount is paramount. There are several types available, each with its own advantages and disadvantages:
1. Picatinny/Weaver Mounts: The Standard
The most common type, Picatinny and Weaver rails are essentially standardized mounting systems that use a series of slots to secure accessories. They are incredibly versatile and allow for a wide range of scope rings and bases. Most AR-15s come equipped with a Picatinny rail on the upper receiver, making this the simplest option.
2. Cantilever Mounts: Extended Reach
Cantilever mounts extend the scope forward, offering several benefits:
- Improved Eye Relief: Essential for shooters using powerful calibers or scopes with limited eye relief.
- Clearer Sight Picture: Reduces interference with charging handles or other components.
- Increased Mounting Options: Allows for mounting larger scopes or accessories.
3. Low-Profile Mounts: Minimal Height
Designed for close-quarters combat (CQB) or situations where a lower profile is desired, these mounts keep the scope closer to the receiver. This can improve handling and maneuverability. However, it might compromise eye relief.
4. Scope Ring Considerations: Height and Material
The height of your scope rings directly influences the sight picture and cheek weld. Too low, and you'll struggle to see through the scope; too high, and your cheek weld will be uncomfortable. Choose rings appropriate for your scope's diameter and the height of your mount. Material is also a factor; steel rings are robust and durable, while aluminum rings are lighter but may not be as strong.
Mounting Your Scope: A Step-by-Step Guide
Once you've chosen your mount and rings, follow these steps:
- Prepare Your Rifle: Ensure your AR-15 is unloaded and the bolt is locked back. Double-check! Safety first.
- Attach the Base (if necessary): Some mounts require a base to attach to the Picatinny rail. Securely fasten the base to the rail using the provided screws, ensuring they are tightened evenly.
- Mount the Rings: Attach the scope rings to the base, making sure they are properly aligned and securely fastened.
- Install the Scope: Carefully place the scope into the rings. Ensure it's seated properly and centered before tightening the ring screws. Again, tighten evenly to avoid damaging the scope.
- Torque Specifications: Refer to the manufacturer's instructions for torque specifications. Over-tightening can damage your scope or mount.
- Check for Stability: Once everything is secured, gently rock the scope to ensure it's firmly attached and doesn't wobble.
Zeroing Your Scope
After mounting, you'll need to zero your scope to ensure accuracy. This involves adjusting the scope's windage and elevation turrets to align the point of impact with the point of aim.
This process requires careful attention, a safe shooting environment, and ideally, a shooting rest. Many resources explain zeroing techniques; consult these for detailed instructions. Start with a close-range zero (25 yards), then adjust for longer ranges as needed.
Maintenance and Care
Regular maintenance is crucial for the longevity of your scope and mount. Keep the mount clean and free of debris. Use appropriate cleaning solutions and avoid harsh chemicals. Periodically check the tightness of all screws to ensure everything remains secure.
This guide provides a foundation for mounting a scope on your AR-15. Remember to always prioritize safety and consult your specific equipment’s instructions for detailed guidance. Safe shooting!
