20 Gauge Laser Cartridge Bore Sighter Details

20 Gauge Shotgun Laser Bore Cartridge - Fits 20 Gauge Shotguns 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 Aluminum Construction Batteries Included. Length: 2.3" Weight: 1.1 oz SKU TLZ20G