The Tiger Rock Inc. LBS223 .223 Cartridge Laser Bore Sighter is the ultimate tool for achieving precision in firearm aiming. Crafted from durable, high-grade aluminum, this bore sighter fits securely in .223 chambers, making it an essential accessory for adjusting optics and sights with confidence. Fits .223 Chambers Brass casing LED Type: Visible red laser Laser wavelength: 635-655 nm Laser beam: < 5mW Sighting range: 20-30 yards Dot size: 1.5 inches @ 100 yards Requires (3) LR41 button cell batteries Elevate your shooting accuracy with the Tiger Rock LBS223 and redefine your sighting experience.