The Osprey Global .223 Green Boresight Kit provides one convenient sight-in system for more than 20 popular rifle and shotgun calibers. The kit combines a bright .223 green chamber laser with 11 CNC-machined brass arbors, eliminating the need to purchase a separate laser boresight for every caliber.
Select the appropriate arbor, insert the .223 green boresight and secure the arbor backing. Once the assembled boresight is placed in the chamber and the action is closed, the green laser provides a visible reference for aligning a scope, red dot or other optic. This allows you to complete the initial alignment before confirming the final zero with live ammunition.
The included arbors cover calibers ranging from 20 gauge and 12 gauge to .308, .30-06, .300 Winchester Magnum, .338 Lapua and .50 BMG. A durable nylon storage case keeps the boresight, batteries and all 11 arbors organized between uses.
