yes i do use one ., never had onetill 2years ago, and i really like it and it really helps.,i use a nikon prostaff laser440 ., more then plenty for the way i hunt., i get up in stand weather bow unting or muzzlehunting and i range and range., i never range at a deer cause i dont have the time to ., but it really helps when i range all possible areas that the deer would come in., 199.00 good investment for me!!