EZshoot Bore Sight Kit for .17 to 12GA Calibers BoreSighter with Button Switch Red Laser Bore Sight

[16 Adapters Fit for .17-12GA Calibers]: Upgraded 16 bore adapters in set, the laser bore sight can be applied to all .17- 12GA calibers.The adapters are engraved with clearly visible serial numbers to help you quickly match the corresponding model.
[Specially Designed Arbor to Improve Stability]: Equipped with arbor for .54-12GA calibers allows the boresighter to fit barrels perfectly, providing higher stability and accuracy.
[High Accuracy]: The laser bore sight kit multiple caliber emits a straight red laser beam, providing a precise reference for zeroing in on your optics. Brightness Enhancement: Max Output Power: less than 5mW，Class IIIA Laser.
[Push Button Switch and 2 Sets of Batteries]:With a sensitive push button switch, you can control the laser on and off very well. Comes with 2 sets improved LR44 batteries（6 batteries) and each set lasts up to 2.5 hours, allows you to quickly replace batteries when working outdoors.
[Easy to Use]: EZshoot laser bore sighter has been calibrated before leaving the factory, no further adjustments required. Just simply choosing appropriate size adapter to install on the boresighter and place the laser bore sight in the barrel.