Osprey Global 350 Legend Red Laser Boresight Brass Small 350 Legend Boresight. Made from durable brass it is easy to use precisely calibrated to position shots within 1.5 inches of center and backed by Ospreys lifetime warranty. Specifications for Osprey Global 350 Legend Red Laser Boresight: Manufacturer: Osprey Global Fabric/Material: Brass Beam Color: Red Laser Output: 5 mW Weight: 34 g Wavelength: 635 - 655 nm Features of Osprey Global 350 Legend Red Laser Boresight Ensures your first shot is on target saving you time and ammo. Package Contents: Osprey Global 350 Legend Red Laser Boresight 3 LR41 batteries Osprey Global 350 Legend Boresight: 350 Legend Red Laser Boresight Brass Small