Specification:<br /><br /> <br />  <br />   <br />    Product name: <br />   <br />    Picatinny Weaver Rail Mount Red Laser Sight<br />  <br />  <br />   <br />    Material:<br />   <br />    Constructed of durable aircraft aluminum alloy<br />  <br />  <br />   <br />    Wave length:<br />   <br />    650nm<br />  <br />  <br />   <br />    Powered by:<br />   <br />    1x CR1\/3N 3V Battery ( Included )<br />  <br />  <br />   <br />    Output power:<br />   <br />    1MW,5MW<br />  <br />  <br />   <br />    Windage &amp;amp; Elevation:<br />   <br />    Adjustable from Outside.<br />  <br />  <br />   <br />    Reaching Distance:<br />   <br />    &amp;gt;100meters<br />  <br />  <br />   <br />    Switch:<br />   <br />    Ambidextrous on\/off switch<br />  <br />  <br />   <br />    Light color:<br />   <br />    red light<br />  <br />  <br />   <br />    Size:<br />   <br />    2.393 inch(L) x 1.154 inch(W) x 0.913 inch(H).<br />  <br />  <br />   <br />    Weight:<br />   <br />    70g<br />  <br /> <br /><br /><br />Features:<br />1.Mount on any 20mm Weaver &amp;amp; Picatinny Standard Rail. To Activate the Laser, Simply Push in on the Activation Switch with the Index Finger. To Turn Off, Move Activation Switch to Center Position<br />2.Fits most makes of pistols with a front weaver\/pica tinny rail with crossbar slot, 20mm mount<br /><br />Package included:<br />1 x Picatinny Weaver Rail Mount Red Laser Sight<br />2 x Applicableallen Wrenches.<br />1 x CR1\/3N 3V Battery