Zeroing an AR-15 can be time-consuming and expensive at the range. Using an AR-15 bore sighting laser significantly reduces the time and ammo needed to get your rifle on target. This guide provides a comprehensive overview of AR-15 bore sighting lasers, how they work, their advantages, and how to choose the right one.
Understanding AR-15 Bore Sighting Lasers
An AR-15 bore sighting laser is a tool designed to quickly and accurately align your rifle's sights or optic with the barrel's bore. It uses a laser beam that projects through the barrel, indicating where the bullet will impact at a given distance. This allows you to make initial sight adjustments before heading to the range, drastically reducing the number of shots required for zeroing. Key advantages include speed, cost-effectiveness, and improved accuracy.
Types of AR-15 Bore Sighting Lasers
There are several types of bore sighting lasers available for AR-15s, each with its own advantages and disadvantages:
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Standard Bore Sight Lasers: These lasers are inserted into the barrel's chamber and project a laser beam through the bore. They are generally inexpensive and effective for a basic sight adjustment. However, some may require disassembly of the upper receiver, which may not be preferable for all users.
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Laser Bore Sighters with Mounting Systems: These lasers use a mounting system that attaches to the barrel, eliminating the need for chamber insertion. This is generally faster and safer, reducing the risk of damaging the firearm.
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Battery-powered lasers: Most lasers utilize small batteries, providing significant longevity. Always check the battery life and replacement options.
How to Use an AR-15 Bore Sighting Laser
The process of using a bore sight laser generally follows these steps:
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Safety First: Ensure the firearm is unloaded and the safety is engaged. Always treat every firearm as if it were loaded.
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Insert or Mount the Laser: Depending on the type of bore sighter you have, carefully insert it into the chamber or attach it to the barrel using the provided mounting system. Follow the manufacturer's instructions precisely.
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Aim at Target: Point the rifle at a target at a reasonable distance (25 yards is a good starting point).
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Adjust Sights/Optic: Using the adjustment knobs on your sights or optic, align the laser dot with the center of your target.
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Remove Laser: Carefully remove the laser from the chamber or detach it from the barrel.
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Fine-tune at the Range: While the bore sighter provides a close approximation, fine-tuning at the range is always essential to achieve precise zeroing.
Choosing the Right AR-15 Bore Sighting Laser
Several factors to consider when selecting an AR-15 bore sighting laser:
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Accuracy: Look for lasers with high accuracy ratings, ensuring minimal deviation from the actual bullet trajectory.
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Durability: Choose a laser built from high-quality materials to withstand the rigors of use and handling.
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Ease of Use: Consider how easy the laser is to insert, mount, and operate.
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Battery Life: Check the battery life and availability of replacement batteries.
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Price: Bore sighting lasers range in price, so choose one that fits your budget and needs.
Case Study: Comparing Two Popular Bore Sighting Lasers
| Feature | Laser A (Chamber Insert) | Laser B (Mounting System) |
|---|---|---|
| Price | $30 | $60 |
| Accuracy | ±0.5 MOA | ±0.25 MOA |
| Ease of Use | Easy, but requires chamber access | Easier, no chamber access |
| Durability | Moderate | High |
| Battery Life | 2 hours | 4 hours |
This table illustrates the trade-offs between price and features. Laser B, while more expensive, offers superior accuracy and ease of use, thanks to its mounting system.
Conclusion: The Value of an AR-15 Bore Sighting Laser
An AR-15 bore sighting laser is a valuable tool for any AR-15 owner. It saves time, ammunition, and money at the range, enabling a much quicker and more efficient zeroing process. By following this guide and considering the factors outlined above, you can choose the right bore sighting laser to enhance your shooting experience. Remember, safety should always be your top priority when handling firearms.