<b>Specifications: </b><br> Length: 44.5mm; Tail width:9.5mm; Head width: 6.3mm<br> Laser Wavelength (nm:) 640 to 660<br> LED Type: visible red laser<br> Power: <5 mW <br> Construction: Brass<br> Sighting Range: 15 to 100 yards<br> Operation: On/Off End Cap<br> Temperature: -10 to 40 Celsius<br> Battery Type:6 X AG3 (Included) <br><br> <b>Package Included</b><br> 1 X Bore Sight <br> 6 X AG3 Battery <br>