In this, the final AR-15 assembly video, we’ll walk through the installation of the takedown pin and the buttstock assembly. Finally, we’ll put the upper and lower together for the first time and establish basic functionality (formal function check to follow in subsequent posts).
After all of the planning and work that went into getting this rifle into its proper form, it’s quite exciting to see it come together, and to hold it as if I was at the range, or stalking down a Coyote.

Next, we’ll take a look at the Nikon Monarch scope that was selected for this project, trick it out, install it on the rifle, level reticles, do a basic sight-in, and then head to the range. Can’t wait!
This has been a real informative build. I have an original Colt AR-15 that I bought from a friend that was originally purchased by his uncle in 1973 at Sears or JC Penny (according to him). I am planning an AR build of my own so I have been following along. Thanks for taking the time to do this. BTW, are you using a DSLR for your filming? If so, which one?