Sightmark SM39001 Boresight Red Laser for 223 Rem/5.56x45mm NATO Brass Includes Battery Pack & Carrying Case

Tested and recommended by the National Tactical Officers Association, the Sightmark boresight significantly reduces wasted cartridges and shells. Chamber the device in your .223 rifle like a regular cartridge, and a red laser dot shows exactly where you're aiming. Simply adjust your sights or scope, and save your extra ammo for the hunt. Includes a carrying case, three AG3 batteries, and instructions.