Long range shooting

Define long range, at night? We used them weapons mounted (lasers) at night to shoot but only after seeing the target with PVS14's ect , so under 250 meters with M4s , not bad. See the tgt, laze the tgt, shoot the tgt....
 
By the time you worked out all the engineering challenges of making one that could work and still need optics to see it. You would have a real expensive way to accidentally blind someone from a reflection of the laser beam. Lol