SME Sight-Rite Muzzle Laser Bore Sighter, Black - XSILBK2

This laser bore sighter mounts to the muzzle and is compatible with rifles from .17 to .50 caliber as well as 10, 12, and 20 gauge shotguns. It features durable machined aluminum construction with an anodized finish and includes a calibration target, carrying tube, and three LR44 alkaline batteries. The patented design provides quick and accurate bore sighting without metal-on-metal contact.