Product DescriptionGet on target faster with the Sightmark .44 Magnum Red Laser Boresight. Designed to chamber like a standard .44 Remington Magnum cartridge, this brass-bodied boresight projects a visible red laser to align your optic or iron sights in minutes. Ideal for initial sight-in or as a training aid for quick-draw drills, it delivers practical accuracy from 15 to 100 yards and includes a convenient carrying case and batteries to get you started.Product Highlights Chamber-in design for .44 Remington Magnum pistols and revolvers Visible red laser (632-650 nm) with output power under 5 mW 2-inch dot at 100 yards for precise windage and elevation adjustments Durable brass construction; compact and lightweight for range or field use Includes three AG3 batteries and a carry case; approx. 1-hour runtime Specs Caliber: .44 Remington Magnum Laser: Visible red, 632-650 nm; output power < 5 mW Dot Size: 2 in at 100 yards Range for Sighting: 15-100 yards Body Material: Brass Battery: Three AG3 (included); battery life up to 1 hour Operating Temperature: -10 to 50 F/C MPN: SM39019 UPC: 810119011251 Brand: Sightmark 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.