EZshoot Boresighter Bore Sight Kit for .177 to 12GA Caliber

About Red Boresighter with Adapters 【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