MidTen Red Laser Bore Sight Kit Multiple Caliber for .177 to 12GA Caliber with Big Press Switch Red Dot BoreSighter with 2 Sets of Batteries

Upgraded 16 Adapters with numbers: Comes with 16 adapters, suitable for .17-12GA caliber, clearly shown the serial numbers, so that you can quickly find the adapter of the caliber you need.
Improve Accuracy: Bore Sighter emits a pre-set straight red laser, improves the problem of insufficient laser brightness and beam miscentering, providing an accurate zeroing reference, saving cartridges and shells.
Easy to Use: Press button switch function of bore sighter can easily turns on/off the laser for more convenient control. The included 2 sets of batteries can meet the time required for zeroing, no need to replace the batteries frequently.
New Arbor Accessory: Bore sighting laser comes with an arbor as an auxiliary tool. For .54-12GA caliber, the arbor can form 2 contact points with the muzzle when installed on the laser bore sight, improves the stability of the bore sighter.
Reliable and Professional: Adapt with superior materials and professional craftsmen, it is sturdy and has long service life of trouble-free use. Class IIIA laser; less than 5mW.