The Tiger Rock Inc. LBS762X54 7.62x54mm Cartridge Laser Bore Sighter provides precision and accuracy for shooting enthusiasts. Its durable aluminum design ensures a perfect fit in your firearm's chamber, enhancing your ability to calibrate optics and sights efficiently. This high-performance laser bore sighter emits a vivid red laser, with a sighting range of 20-30 yards and a dot size of just 1.5 inches at 100 yards, making it an essential tool for both novice and experienced shooters. Fits 762.54mmR Chambers Metallic red finish High quality aluminum casing LED Type: Visible red laser Laser wavelength: 635-655 nm Laser beam: < 5mW Sighting range: 20-30 yards Dot size: 1.5" @ 100 yards Requires (3) LR41 button cell batteries Elevate your shooting skills with the Tiger Rock Laser Bore Sighter today!