Feyachi BS51 Green Bore Sight - 9mm Laser Boresighter Laser Boresighter making the adjustment feedback more

making the adjustment feedback more efficient

[Material] Made of high-quality aircraft aluminum

and each turn is a 1/2 MOA click

it can still work well in 1 meter water depth

and resilience to withstand hard impacts

Feyachi BS51 Green Bore Sight - 9mm Laser Boresighter Laser Boresighter making the adjustment feedback moreAbout this item Parameters Class IIIA, less than 5mW 510 520nm green laser zeroing boresighter. ApplicationThe 9mm laser sight for 9mm chamber, specific caliber. Aiming range is 30 to 300 yards. Highly accurateBright and clear green dot laser zeroing and aiming system saves you time, money and ammunition. Design Sturdy and durable brass construction, light and compact, and easy to sit perfectly in the bore. Battery3 sets of (9 LR41) batteries. Each