Insight Technology bore sights allow for easier sighting of even your most high powered rifle. These bore sights use laser technology to precisely zero in a whole range of weapon accessories without shooting a single round. These bore sights have been designed by Insight Technology to quickly get your accessories in tune with your weapon, whether you're using night vision optics or the naked eye to conduct your measurements. Insight Tech laser bore sights can be attached to the barrel of any firearm for a universal sighting system that isn't dependent on caliber or gauge. Here at Optics Planet, most orders over $49 qualify for Free Shipping, including bore sights by Insight Technology, so take advantage of our low prices today!