Tyseam 223 556 Laser Bore Sight- Red Laser Sight Boresighter for Zeroing Sight in with Rifles or Pistols with 2 Sets of Batteries

SPECIFICATION Sighting Range:15 to 100 yards Laser Wavelength: 635-655 nm Laser Classs:IIIA Material: Brass Operation: On/Off Cap Laser Type: Visible Red Laser Dot Color: Red Laser Battery Type: LR41/ AG3(Included 6 batteries) Temperature: -10? to 40? How To Use First: Twist the cap off the bore sight counter clockwise; Second: insert batteries (+ side up) inside the rear opening. Third: carefully push down and turn the screw cap clockwise to tighten the cap (the laser is now on) Finally: place in your rifle’s chamber and close the bolt. PACKAGE INCLUDED 1 x 223 Rem Bore Sight 6 x AG3/LR41 Batteries