<br> Save time, money, and frustration by getting on paper with only a few shots for fine tuning. <ul> <br> <b>Instructions<b> <ul> <li> Unscrew the back cap from the bore sight by turning counter clockwise</li> <li> Stand the boresight on a flat surface with the laser side pointing down </li> <li> Insert 3 batteries (+ side up) inside the rear opening. This unit will work with 3 batteries and comes with an additional set.</li> <li> Carefully push down & turn the screw cap clockwise to tighten the cap (the laser is now on) </li> <li> Place in your rifle’s chamber and close the bolt </li> <li> To remove - open the bolt if it does not automatically extract manually remove the unit by </li>tilting the rifle’s barrel upward (always practicing safe firearm practices) </li> <li> Unscrew the back and remove the batteries to turn the unit off</li> <br> <b>Technical Information </b> <ul> <li> Caliber or gauge specific bore sight – This laser unit fits the .223 chamber. </li> <li> Red laser has a wavelength of 635-655nm </li> <li> Human Accessible Power Output / Maximum Output Power: <5mW (milliwatts) </li> <li> Laser Hazard Class llla. The laser hazard class has been determined by an independent laboratory and complies with the 21 CFR 1040.10 and 1040.11. </li> <li> Six (6) AG3/LR41 button cell batteries provided; this unit will work with three (3) batteries. </li> <li> Recommended distance is 25 yards indoors.  </li> <li> Will display a 2" dot at 100 yards </li> <li> Brass outer case </li> <li> Operating temperature 14 degrees F to 122 degrees F </li> <li> Includes re-sealable blister pack <li> Lifetime Warranty </li> </li> <ul> <br> <b>CAUTION</b> <br> DO NOT ATTEMPT TO SHOOT THE LASER BORE SIGHTER. <br> ALWAYS PRACTICE SAFE HANDLING PROCEDURES. <br> DO NOT POINT LASER INTO EYE.