Description Chamber the Sightmark® Laser Boresight in your 9mm Luger Pistol like a regular cartridge, and a red laser dot shows exactly where you're aiming. Ideal for hunters, competitive shooters and law enforcement, this device significantly reduces wasted cartridges and shells. Simply adjust your sights or scope, and save your extra ammo for the hunt. This device is tested and recommended by the National Tactical officers Association. Includes a carrying case, three (3) AG3 batteries, and instructions. Included in Package Battery Pack Carrying Case Batteries Used Type: AG3 Quantity: 3 Features Precision accuracy Reliable and durable Fastest gun zeroing and sighting system Reduce wasted cartridges and shells Compact and lightweight Easy to pack and travel EXPORT CONTROL NOTICE: This product is controlled for export and in-country transfer under the Export Administration Regulations (EAR). division contrary to U.S. law prohibited. Specifications Laser Wavelength (nm) 632-650 LED Type visible red laser Power <1 Battery Type (AG5)- 2 (AG3)- 3 Battery Life (hour) 1 Range for Sighting (yd) 15-100 Dot Size (in @ 100yds) 2 Operation on/off end cap Construction brass Temperature (º) -10 - 50