This laser calibrator is made of high-grade aluminum alloy material, lightweight, high strength, corrosion resistant, and designed for long service life. Featuring a highly accurate, adjustment-free design, the calibrator uses infrared light with a straight tube for convenient and precise alignment. Includes an 8-hole adjustable adapter, compatible with calibers from 0.177 to 0.50. Features: - Constructed from high-grade aluminum alloy, offering lightweight durability, high strength, and corrosion resistance for extended use. - Infrared laser technology provides bright, clear, and consistent light over long distances, enhancing calibration accuracy. - Precision-engineered with a straight-tube design for easy and accurate bore alignment without adjustments. - Simple and sleek battery compartment; tail cap unscrews easily for quick battery access and replacement. - 8-hole adjustable adapter fits barrels ranging from 0.177 to 0.50 caliber. Specifications: - Name: Laser Calibrator - Material: Aluminum alloy - Color: Red, Green (optional) - Battery: 1 x CR2 battery (included) - Power: Infrared laser