Specification:<br /><br /> <br />  <br />   <br />    Product name:<br />   <br />    650nm Adjustable Red Laser Sight<br />  <br />  <br />   <br />    Material:<br />   <br />    ABS+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 />    Switch:<br />   <br />    tail ,On \/OFF switch control<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 />    Weight:<br />   <br />    106g<br />  <br />  <br />   <br />    Size:<br />   <br />    3.31 in x 1.57 in x 1.1 in<br />  <br /> <br /><br /><br />Features:<br />1.Black matte aluminum alloy material<br />2.High efficiency, stability, energy saving.<br />3.Picatinny mount fits most Tactical Firearms with or without Rail Slots!<br />4.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 />Package included:<br />1 x 650nm Adjustable Red Laser Sight<br />2 x Wrenchs<br />1 x 20mm and 11MM synthesis fixture<br />4 x AG13 Button Cell