Sighting in a rifle sucks, sure it should only take a few shots, but sometimes it doesn’t always work that way. You can do the look down the chamber method, but that still takes a decent amount of work. Why do all that when you can just use a laser boresighter? Now don’t get me wrong, it’s always good to learn the fundamentals of shooting and how-to sight in a rifle without any special tools. But when you just want to get out there and shoot then this handy .223 laser boresighter for under $10 fits the bill perfectly. I picked one up a few weeks ago to test out, I used it to sight in my new EOTech 512 and Nikon P223 scope for two new AR builds and it helped out tremendously. Just drop it in the chamber then dial in your sights.
You can buy this .223 laser boresighter on Amazon for under $10 with free shipping.