Must admit I had problems with mine and with Lightforces dire customer services, even to the extent I soke to a director at the company whos attitude was indeed....DIRE. In the end I sorte the wirinf myself. The other problem I found was the cable getting int the way but I now use a Safari sling and attatch it to an extra stud I put really far back on the stock, that way nothing fouls when I place the rifle on the sticks, also makes the rifle balance better when the lamp on it.