Specification:
CAL .9mm Laser Bore Cartridge - Fits CAL .9mm Rifle
Red Laser: 635-655nm, Max output<5mw, Class IIIa Laser
Easy to use, just install the batteries into the Laser cartridge and screw on the base, which turns the laser on. Remove Batteries to turn unit off
Factory Pre-Aligned Cartridge Bore Sighters, helps with Zeroing your optics
Brass Construction