Osprey Global ARB-OSP-300WIN Boresight Arbor : Suitable for .300 Winchester Magnum Caliber Firearms

This Arbor does NOT contain a laser. The Osprey Global .223 Green Boresight (sold separately) is required to provide laser function. The separately available Green Boresight utilises a green Class IIIa Laser with <5mW output.
Suitable for .300 Winchester Magnum caliber firearms
Made from high quality brass
With Osprey Globals Boresight Arbors you can convert your Osprey .223 Green Laser Boresite into a variety of calibers to provide a cost effective solution for owners of firearms or varying calibers.