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The arbor should be aluminum so it is softer than the barrel steel and therefore will not damage the muzzle crown. The Arbor also pushes down into the magnetic portion (this is how the laser turns on as well).
I have had and used several laser boresighters and haven't cared much for any of them none of them were consistent or reliable.Then I read a write up on sightmark boresighters and decided to give this one a try.The first scope I boresighted with it p...
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I purchased this laser Boresighter for my AR15 build. The battery it came with died quickly. The other issue is sometimes the retractable arbor does not complete the electrical contact required to turn on the laser. Otherwise this product does wor...
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3/3 found this helpful
Helpful Positive Review
Bore sight
by
T W,
November 29, 2017
Works well like it should. Find that the magnet is strong enough but could be stronger. I like the green laser better than the red laser. I have quite a few guns,and anyone in my position would do well to spend a little more on the beging and save a ...
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Caliber: .17 Hornady Magnum Rimfire Included Accessories: Batteries Fabric/Material: Aluminum/ Rubber/ ABS Plastic Battery Type: CR123A Finish: Matte Color: Black Beam Color: Green Condition: Factory DEMO Battery Quantity: 1
Code: XK-BS-UGLBP-SM39044-DEMO
MPN: SM39044-DEMO
Product No Longer Available
Product Info for SightMark Universal Green Laser Boresight Pro
The Sightmark Professional Universal Green Laser Boresight is designed for sighting in .17-.50 caliber rifles, shotguns and pistols. The unit provides the fastest gun zeroing and sighting system to reduce wasted cartridges and shells when sighting in your new optic. Its durable, ultra-compact design makes it easy to pack for travel, and includes an ultra strong magnetic base that is expanded to fit shotguns and muzzle brakes. The boresight features digital on/off and mode controls and long lasting battery life using CR123A batteries.