Product DescriptionThe SME Sight-Rite 12 Gauge Cartridge Laser Bore Sighter is precision machined from brass to ensure dependable chamber fit and optimum accuracy. Designed specifically for 12-gauge shotguns, it features a high-output laser to quickly align optics or iron sights before live-fire zeroing, saving time and ammunition. Each unit arrives ready to use with button cell batteries included.Product Highlights Precision-machined brass cartridge for consistent, caliber-specific alignment High-output laser provides a bright aiming point for rapid sight setup Chamber-insert design mimics a live round for reliable bore reference Includes three button cell batteries for immediate use Ideal for pre-zeroing scopes, red dots, and iron sights on 12-gauge shotguns Specs Product Type: Cartridge laser bore sighter Gauge: 12 Gauge Construction: Brass casing Laser: High-output Power: Includes three LR41 button cell batteries UPC: 813628014843 Manufacturer Part Number: XSIBL12GA Brand: SME Disclaimer: We strive to provide accurate and up-to-date product descriptions, specifications, and images; however, errors or omissions may occasionally occur. We are not responsible for any inaccuracies or discrepancies in the content provided. If you notice anything incorrect or unclear, please contact us so we can correct it. When in doubt, we recommend verifying details directly with the product&';s manufacturer.