Description Chamber the Sightmark .22-250 Laser Boresight in your rifle 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. Includes a carrying case, three (3) AG3 batteries, and instructions. Included in Package Battery pack Carrying case Batteries Used Type: AG5 Quantity: 2 Product Downloads Product Manual Product Specifications Features Precision Accuracy Reliable And Durable Fastest Gun Zeroing And Sighting System Reduce Wasted Cartridges And Shell Compact And Lightweight Easy To Pack And Travel Comes With A Carrying Case Compatible with .22-250 barrels 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 1mW Battery Type AG5 or AG3 Battery life, hours 1 Range for Sighting 15-100 Dot Size, in. @ 100yds 2 On/Off Operation On/Off end cap Construction Brass Operating Temperature 14-122F