Bore Sight Kit Green Laser Boresighter for .17 to 12GA Calibers Bore Sighter with Big Button Switch

[Upgraded Laser Bore Sighter]: Upgraded version improves its accuracy and stability,improves the problem of insufficient laser brightness and beam miscentering, providing an accurate zeroing reference,allows you to quickly and accurately target any scene or object.
【12 pieces adapters fit for more models】Upgrade 12 pieces bore adjustable adapters to fit all .177-12GA caliber pistols and rifles.You can quickly find the adapter of the caliber you need.
[Additional New Arbor Accessory] Our green laser bore sighter comes with an arbor as an auxiliary tool. Arbor suitable for .54-.74(#9-#12)calibers,improves the stability of the boresighter.
[High Capacity Battery]: After testing and comparison, we have selected the upgraded CR2 batteries with longer battery life and longer service life than others, it give you longer aiming correct.Laser class: IIIa. Max. Output Power:＜5mW.
【Easy to Use】 Big Press button switch function, just lightly press to turn ON/OFF the laser, easier and more convenient to control. Simply choose the caliber adapter and place the laser bore sight unit in the muzzle.