12GA Red Dot Laser Bore Sight in-Chamber Cartridge Laser Bore Sighter with Two Sets Batteries

Additional Details from the Manufacturer

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More features

• SAFE: Class IIIA laser,Output power less than 5mW.
• LONG RANG: The visible range of laser is as far as 100 yds, the straight red laser beam is easier to identify. and to help you adjust the scope and sight quickly and accurately.
• LONG LIFE: Equipped with 2 sets of batteries(6pcs),double the service time.
• EASY TO USE: Fastest gun zeroing and sighting device, you just place the boresighter in the chamber simply.
• SAVING: Adjustments to sight in your scopes & sights without firing any ammo. You don’t need to use the extra ammo for honing shooting skills.