40% OFF CODE:QBZR2024 【Applied More Model】Upgrade 14 pieces bore adjustable adapters to fit all .177-12GA caliber pistols and rifles,choose the caliber adapter and place the unit in the muzzle,providing a precise reference for zeroing in on your target. [Additional Arbor]Theopot red laser bore sighter comes with an arbor as an auxiliary tool. Arbor suitable for .54-.74(#12-#14)calibers, improves the stability of the boresighter.