Site-Lite SL-100 Mag Laser Boresighting System Review

First Thoughts on the Site-Lite SL-100 Mag Laser Boresighting System

The Site-Lite SL-100 Mag Laser Boresighting System promises a simple and accurate way to get your firearms on target. Manufactured by Site-Lite, this system utilizes a magnetic attachment and laser technology to align your sights or optics without firing a single round. The universal design, claiming compatibility with everything from .22 caliber handguns to 12-gauge shotguns, immediately grabbed my attention.

My years spent as an outdoor and tactical gear specialist have shown me the importance of a good boresighting tool. Often, I find myself wasting time and ammunition trying to get a new scope zeroed on my hunting rifle. The promise of a quick, accurate, and universal boresighting solution was something I was eager to explore.

Upon unboxing the Site-Lite SL-100, I was initially impressed with the apparent quality of the machined aluminum. The magnets felt strong, and the included adapter system seemed comprehensive, although a bit overwhelming at first glance. It certainly felt more robust than some of the cheaper, plastic boresighters I’ve used in the past.

Compared to other laser boresighters that use caliber-specific arbors, the Site-Lite SL-100’s universal design is a significant selling point. I was particularly interested in how well it would perform on both my precision rifles and larger-bore shotguns, something most other systems struggle to accommodate. My initial excitement was tempered with a healthy dose of skepticism – could one tool really do it all?

First impressions were generally positive; the Site-Lite SL-100 seemed well-built and thoughtfully designed. I was anxious to get it to the range and see if it could live up to the claims of accuracy and ease of use.

Real-World Testing: Putting Site-Lite SL-100 Mag Laser Boresighting System to the Test

First Use Experience

I first tested the Site-Lite SL-100 at my local shooting range, using a variety of firearms. These included a .223 AR-15, a .30-06 hunting rifle, and a 12-gauge shotgun. The range offered a controlled environment to assess the boresighter’s accuracy and ease of use.

The most challenging aspect initially was finding the correct combination of adapters and o-rings for each firearm. However, once I got the hang of it, the system proved to be relatively straightforward. Aligning the laser spot at 25 feet was easy, and adjusting the scope crosshairs to match the dotted lines on the provided target was simple enough.

I did notice that the magnetic attachment wasn’t as secure on some firearms as on others, particularly on barrels with a thinner profile. This required some extra care to ensure the SL-100 remained stable during the alignment process. I was pleased to see how close to zero my rifles were after boresighting.

Extended Use & Reliability

After several weeks of use, the Site-Lite SL-100 has proven to be a reliable tool, although it’s not without its quirks. The anodized aluminum construction has held up well, showing no signs of significant wear and tear. Cleaning is simple; a quick wipe-down with a soft cloth is all that’s needed.

However, the o-rings are a potential point of failure, and I would recommend keeping spares on hand. While the system works as advertised, it does require a bit of patience and attention to detail to achieve optimal results. Compared to my previous experiences with traditional boresighting methods, the Site-Lite SL-100 is significantly faster and more convenient.

Breaking Down the Features of Site-Lite SL-100 Mag Laser Boresighting System

Specifications

  • Caliber Compatibility: .22 to .50 caliber handguns and rifles, 20 gauge & 12 gauge shotguns, and muzzleloaders. This versatility makes it a valuable tool for any gun owner with a diverse collection of firearms.
  • Attachment Method: Magnetic. The magnetic attachment ensures a secure and repeatable alignment, contributing to the system’s overall accuracy.
  • Material: Precision machined, aircraft-quality, anodized aluminum. This robust construction ensures durability and longevity, even under frequent use.
  • Boresighting Range: Designed for 25-foot alignment, translating to a 100-yard zero. This simplifies the boresighting process and saves time and ammunition at the range.
  • Adapters: Includes a system of adapters and o-rings for universal fit. The comprehensive adapter system eliminates the need for additional purchases and ensures compatibility with a wide range of firearms.

Performance & Functionality

The Site-Lite SL-100 performs its primary function – boresighting – effectively, especially when used correctly. It significantly reduces the amount of ammunition needed to get a firearm on target. The accuracy is generally good, although it may require fine-tuning at the range.

The main strength lies in its universal compatibility; the ability to boresight a variety of firearms with a single tool is a significant advantage. A potential weakness is the reliance on the magnetic attachment, which may not be as secure on all firearms. Overall, it meets expectations for a laser boresighting system in its price range.

Design & Ergonomics

The Site-Lite SL-100 is well-designed, with a focus on durability and ease of use. The aluminum construction feels solid and the components are well-machined. While the adapter system can be a bit fiddly at first, it becomes more intuitive with practice.

There is a slight learning curve associated with finding the correct adapter configuration for each firearm. However, once mastered, the process is relatively quick and painless.

Durability & Maintenance

The aircraft-grade aluminum construction suggests a long lifespan with proper care. I anticipate the SL-100 lasting for many years with regular cleaning and maintenance. The o-rings are the most likely component to require replacement over time.

Maintenance is straightforward; simply wipe the unit clean after each use and inspect the o-rings for wear and tear.

Accessories and Customization Options

The Site-Lite SL-100 Mag Laser Boresighting System comes with everything needed for basic boresighting, including a target and a variety of adapters. There are no specific customization options available, as the system is designed to be universally compatible out of the box. It’s compatible with virtually any firearm accessory, provided it doesn’t interfere with the bore.

Pros and Cons of Site-Lite SL-100 Mag Laser Boresighting System

Pros

  • Universal Compatibility: Works with a wide range of calibers and firearms, eliminating the need for multiple boresighting tools.
  • Durable Construction: Made from aircraft-quality aluminum for long-lasting performance.
  • Saves Time and Ammunition: Significantly reduces the amount of ammo needed to zero a firearm.
  • Relatively Easy to Use: Once familiar with the adapter system, the process is quick and straightforward.
  • Magnetic Attachment: Provides a secure and repeatable alignment for increased accuracy.

Cons

  • Magnetic attachment strength can vary depending on firearm barrel.
  • Adapter/O-ring selection can be confusing initially.


Who Should Buy Site-Lite SL-100 Mag Laser Boresighting System?

The Site-Lite SL-100 Mag Laser Boresighting System is perfect for gun owners who own a variety of firearms and want a single, universal boresighting solution. It’s also a great choice for hunters and competitive shooters who frequently mount and dismount optics. Reloaders and handloaders will also find this useful, as any change in components can shift the point of impact.

This product may not be ideal for those who only own a single firearm or prefer simpler, more streamlined tools. Those with firearms that have non-ferrous barrels (aluminum or carbon fiber) may also find the magnetic attachment less effective.

Must-have accessories include spare o-rings and a small container to keep the adapters organized.

Conclusion on Site-Lite SL-100 Mag Laser Boresighting System

The Site-Lite SL-100 Mag Laser Boresighting System offers a convenient and relatively accurate way to boresight a wide range of firearms. While the adapter system can be a bit fiddly, the universal compatibility and durable construction make it a worthwhile investment. At $113.49, the price is justified considering the time and ammunition it saves.

I would personally recommend the Site-Lite SL-100 to any gun owner looking for a versatile and reliable boresighting tool. It’s a valuable addition to any range bag and will undoubtedly pay for itself over time in saved ammunition and frustration. Get yours today and start shooting with confidence!


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