Specification:<br /><br /> <br />  <br />   <br />    Product name: <br />   <br />    650nm Adjustable Red Laser Sight<br />  <br />  <br />   <br />    Material:<br />   <br />    aluminium alloy<br />  <br />  <br />   <br />    Output power:<br />   <br />    1mw,5mw<br />  <br />  <br />   <br />    Laser Range:<br />   <br />    50-100meters<br />  <br />  <br />   <br />    Wave length:<br />   <br />    650nm<br />  <br />  <br />   <br />    Powered by:<br />   <br />    AG13 Button Cell(included)<br />  <br />  <br />   <br />    Light color:<br />   <br />    red light<br />  <br />  <br />   <br />    Size:<br />   <br />    7.5cm x 4cm x 2cm<br />  <br />  <br />   <br />    Weight:<br />   <br />    115g<br />  <br /> <br /><br /><br />Features:<br />1.Precise and wide Range Windage and Elevation Adjustments for all Firearms!<br />2.Universal Clamp-on Mounting Dech to fit most Firearms with or without Rail Slots!<br />3.Holder is designed for 11mm-20mm rail shot gun<br /><br />Warning signs:<br />Direct to the human eyes is strictly prohibited, so as not to cause harm.<br />Maximum-power laser transmitter is used, start-up time is short.<br /><br />Package included:<br />1 x 650nm Adjustable Red Laser Sight<br />1 x 20mm and 11MM synthesis fixture<br />2 x Wrenchs<br />3 x AG13 Button Cell