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Concept Development Corporation Site-Lite SL-100 Mag Laser Boresighting System
List: $175.99 $139.99 Save 20%
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best boresight

by Frank Aloha, Verified Owner from GA, United States Written on July 24, 2026
Wasted plenty of money on gimmicks that I won’t name shame here but finally went with this SL-100 and it is by far the most accurate of the many I have tried. Really should have bought this to begin with. Followed the instructions to the tee and I was on paper and only had to adjust a few clicks at the range. I will definitely recommend this specific model from now on. For reference I zeroed my S&W M&P Competitor with a Holosun 507 Comp green at 15 yards for USPSA.
Would recommend: Yes
Was it helpful to you? Yes | No

Quick setup!

by a59cheffy, Verified Owner from OR, United States Written on April 6, 2026
Easy to follow instructions for caliber bore setup. Downloaded software is easy to use. Software is bullet specific so a little tweaking is involved. Makes red dot adjustments so much more efficient and quick.
Would recommend: Yes
Was it helpful to you? Yes | No

Need better instructions

by Mark, Verified Owner from IN, United States Written on August 6, 2025
My first use was on my 5.56 and it was not listed on the instructions. I did figure it out. A better listing on calibers and what would be needed to use system. They did recommend lube to insert in the bore, it is needed. If the only difference of the 100 to the 500 is the battery, the 100 is the best deal.
Would recommend: Yes
Was it helpful to you? Yes | No

best bore sight out there.

by Vin, Verified Owner from NJ, United States Written on February 28, 2025
I’ve tried a lot of bore sights and hands down this is the best. Especially along with the software you can download.
Best Used for:
  • Indoor sight-in
Would recommend: Yes
Was it helpful to you? Yes | No
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Last updated 2025-11-12 UTC.