STONESKY High Accuracy CAL 9mm Red Laser Bore Sight Cartridge Bullet Shap Boresighter With 6 Batteries

Features:
[Parameters] Class IIIA, less than 5mW 632-650nm red laser.
[Application] The 9mm laser bore sight is suitable for 9mm chamber, caliber specific.
[3 Sets Batteries] 3 sets (6 total) upgraded batteries. Each set lasts up to an hour. Please remove the batteries after use. Please tear the clear plastic first before you put the fresh battery.
[High Accuracy]The fastest red dot laser zeroing and sighting system and save you time and cartridges.
[Design] Sturdy and durable brass construction, light and compact, and easy to sit perfectly in the bore. Notice Please tear the clear plastic first before you put the fresh battery. Please remove the batteries after use.  
Specifications:
Output Power: <5 mW
Laser Class: IIIA
Laser Wavelength: 632 to 650 nm
Battery Type: AG3/LR41
Range for Sighting: 15 to 100 yds Dot Size: 2 in @100yd Operation: on/off end cap Operating Temp: F/C 14 to 122 / -10 to 50 F/C
Battery Installation
* Unscrew the end cap and insert the 3 AG13/LR44 batteries(+side up).
* Screw the back cover(clockwise)and the laser is turned on.
* As the bore sight doesn't have the on/off switch, please remove the batteries after using. Remember to remove the batteries of your bore sight to preserve the battery life, and store in a cool, dry place.
Package: 1 PC Red Dot Laser with 6 LR41 batteries