CVLIFE Bore Sight 9mm Green Laser Boresighter with 12 Batteries 3-9x32 Scope Lightweight Material: This offset dual

Lightweight Material: This offset dual ring scope mount is made of 6061 aviation aluminum material and weighs only 5

This red dot features 10 brightness settings (9 for Daylight and 1 NV)

Laser Wave length (nm): 640 to 660 LED Type: Visible Red Laser Temperature: -10℃ to 40℃ Construction: Brass

9 inches above the the rail surface and doesn't block your sight

5 settings for different length

CVLIFE Bore Sight 9mm Green Laser Boresighter with 12 Batteries 3-9x32 Scope Lightweight Material: This offset dualAbout CVLIFE 9mm Green Laser Boresighter Green Laser Bore Sighter Bright and clear green laser, the sighting rang is 3 times that of the red laser boresigter at night, so this 9mm green bore sighter is a good choice for keeping a focus on outdoor work. 12 Batteries Comes with 4 sets (12 total, use three at a time) improved batteries. Each set lasts up to an hour. Please remove the batteries after use. High Accuracy Spot on accurate, the 9mm bore sight