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223 Remington/5.56mm NATO Boresighter
223 Remington/5.56mm NATO Boresighter
7.62x39mm Boresighter
7.62x39mm Boresighter
7.62x39mm Boresighter
30-06 Springfield Boresighter
30-06 Springfield Boresighter
30-06 Springfield Boresighter
30-06 Springfield Boresighter
308 Winchester Boresighter
308 Winchester Boresighter
9mm Luger Boresighter
9mm Luger Boresighter
9mm Luger Boresighter
9mm Luger Boresighter
9mm Luger Boresighter
40 S&W Boresighter
40 S&W Boresighter
40 S&W Boresighter
45 Auto Boresighter
45 Auto Boresighter
45 Auto Boresighter
45 Auto Boresighter
45 Auto Boresighter
22 Long Rifle Boresighter
300 AAC Blackout Boresighter
300 AAC Blackout Boresighter
300 AAC Blackout Boresighter
357 Magnum/38 Special Boresighter
357 Magnum/38 Special Boresighter
357 Magnum/38 Special Boresighter
223 Remington/5.56mm NATO Boresighter
223 Remington/5.56mm NATO Boresighter
7.62x39mm Boresighter
7.62x39mm Boresighter
7.62x39mm Boresighter
30-06 Springfield Boresighter
30-06 Springfield Boresighter
30-06 Springfield Boresighter
30-06 Springfield Boresighter
308 Winchester Boresighter
308 Winchester Boresighter
9mm Luger Boresighter
9mm Luger Boresighter
9mm Luger Boresighter
9mm Luger Boresighter
9mm Luger Boresighter
40 S&W Boresighter
40 S&W Boresighter
40 S&W Boresighter
45 Auto Boresighter
45 Auto Boresighter
45 Auto Boresighter
45 Auto Boresighter
45 Auto Boresighter
22 Long Rifle Boresighter
300 AAC Blackout Boresighter
300 AAC Blackout Boresighter
300 AAC Blackout Boresighter
357 Magnum/38 Special Boresighter
357 Magnum/38 Special Boresighter
357 Magnum/38 Special Boresighter
None
None OFF

SIGHTMARK - LASER BORESIGHTER

27 Reviews
Cartridge
Brownells #
100004011, 100004012, 100004013, 100004015
MFR #
SM39001, SM39002, SM39003, SM39005
UPC
810119010001, 810119010018, 810119010025, 810119010049
$35.97 - $47.97
Coupon Code
Purchase Limit Help

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How To Buy Guns Online

International purchase information

What is the SIGHTMARK - LASER BORESIGHTER?

Easy-to-use, self-contained boresighting system fits in the chamber of your rifle or pistol and projects a powerful red laser beam aligned with the bore axis for sighting to the point-of-aim without firing a shot. Works with scopes, holographic red dot sights, and “iron” sights. Durable, machined brass housing looks like a cartridge case but actually contains the entire laser system and batteries. Insert the batteries and screw the cap on the housing to turn on the laser; remove the batteries to turn off. Insert the entire assembly into the chamber, gently close the action, and aim at a target 20-30 yards away. Adjust windage and elevation of the scope or sights so point-of-aim is zeroed on the dot, compensating for sight offset to prevent gun from shooting high. Go to the range for test shots and final sight adjustments. Store boresighter in the included nylon carrying case that fits easily in a pocket, tool kit, or range bag. Available in a variety of calibers, listed below.


SPECS: Machined brass. Laser wavelength, 632-650 nm. Sighting range, 15-100 yards. Dot size, 2” at 100 yards. Includes (2) AG5 button cell batteries, nylon carrying case, and instructions. .223 Rem also fits .222 Rem, 5.56 x 45 NATO, 5.6 x 50, 6 x 47. 7mm Rem/.264 Win also fits 8mm Rem, .338 Win. .30-06 also fits .25-06, .270 Win, .280 Rem, 7mm Express, 7.7 Japanese, 8mm-06, .338-06, and .35 Whelan. .308 also fits 6mm Rem, .243 Win, .257 Roberts, .260 Rem, .284 Win, 7mm-08, .307, .356, and .358 Win.


Specifications

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Restriction

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How To Buy Guns Online

International purchase information

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LASER BORESIGHTER REVIEWS

3.5
27 Reviews
5 Stars
41%
4 Stars
22%
3 Stars
7%
2 Stars
4%
1 Stars
26%
Reviews Summary
The LASER BORESIGHTER receives mixed reviews; while some users find it effective for sighting in and appreciate its ease of use, many report accuracy issues, difficulty seating in barrels, and short battery life. Overall, while it has potential, its inconsistency and quality concerns leave some users disappointed.
What Reviewers Are Saying
Accuracy
65%
Accuracy is a major point of contention among reviewers. While some users achieve good results for sighting in, many complain about significant misalignments between the laser dot and actual point of impact, rendering it ineffective for precise adjustments. This theme resonates with about 65% of reviews.
Ease of Use
55%
Several users appreciate the user-friendly design of the LASER BORESIGHTER, highlighting its simplicity in setup and use, especially for sighting without wasting ammunition. This aspect received positive remarks from around 55% of reviewers, noting it allows for adjustments in comfort at home.
Battery Life
40%
The battery life of the device is frequently criticized. Users report it only lasting 15-30 minutes and diminishing in brightness, which limits its usability during longer sighting sessions. This concern was raised by approximately 40% of reviewers, indicating a significant area for improvement.
Fit and Compatibility
50%
Several reviews indicate challenges with the device not seating properly in barrels, leading to struggles with alignment. Users experienced difficulties with various calibers, resulting in a lack of confidence in its compatibility across different firearms. This issue was mentioned by about 50% of reviewers.
Overall Value
45%
While some users feel the product offers good value for its price, others see it as a waste of money due to performance inconsistencies. This mix in perceptions leads to varied recommendations regarding its purchase, noted by roughly 45% of the reviews.
5
Amazing Results
My new in box Colt Gold Cup National Match in .45 ACP came from the factory shooting 6 inches left and 5 inches low, this laser bore sighter and a pistol rest brought the adjustments in to zero, I’m so satisfied with the results I purchased one in 9 MM. Great product will save ammo.
Would you recommend this? Yes, I would recommend to a friend
by JAMES GRIMA on February 05, 2026
Verified Purchase
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5
Works great!
It works great!
by JAMIE CRAWFORD on September 24, 2023
Verified Purchase
Was this review helpful? 0
5
Great for .22 LR Alignments
This bore sighter is dead on. I first tested it on a .22 rifle I knew was consistently under 1 MOA at 100 yards. Local squirrels just have to see this rifle and they die of a heart attack. I also have tried four different (brand) .223 bore sighters, and they all suck. None of them were even close to being useable. One was so far off center, the beam couldn't even make it out of the barrel. What does this say? A good return policy is important!
by Pig on May 07, 2022
Was this review helpful? 5
5
Easy peasy
Easiest, fastest way to sight a gun.no wasted ammo, and u can do it @ home in your slippers.easy peasy
by Jethro on January 13, 2021
Was this review helpful? 0
5
Awesome value for the money
Used it to sight in a new to me colt scope on my rifle and it worked like a charm
by John on October 24, 2020
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View All 27 Reviews
Customer Questions
0 Questions