Vector Optics 12 Gauge Cartridge Red Laser Bore Sight Collimator (SCBCR-02)
For 12 GA Caliber, Cartridge Style, Convenient and Accurate, Brass Material
Weight (net): 130g (4.6 ounces)
Length: 61mm (2.4 inch)
High quality brass in durable finish
Already set center aligning in factory
Package Including: Instruction, laser bore sight, 4 pcs AG13 Battery
By project a laser beam from the center of the barrel axis of firearm, this laser bore sight collimator allows you to instantly & accurately set your sight or scope etc.
The laser light emitted from the laser bore tool travels in a straight line while the bullet follows a trajectory. Even though the use of this device will get you very close, final adjustment should be made at the range.