We ordered some of these for people that wanted a cheap way to pre-sight in scopes and sights before hitting the range to do the final adjustments. A very easy way to get your sighting system 99% of the way there before actually pulling the trigger. Sold separately in each caliber or available as a 3-pack. Not something you will use every day but is SUCH a useful tool when you do need it...

https://dlaskarms.com/products/laser...x-39-7-62-x-51