Sight Mark Laser Bore Sight with case:
Place the Bore Sight at your muzzle, turn on the green laser, and sight in your optic. The Bore sight is held in place magnetically.
WW1 Mauser GEW98 muzzle protector unit marking Ku for Imperial German Navy for Kiautschou. German naval base in China. Some original nickel plating remaining £110 ono.