• .300WM Laser Bore Cartridge - Fits .300 WIN firearms
• 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
• Batteries Included
• Length: 2.6"
• Weight: 0.6 oz