Anderson lowers, PSA lower build kits. My brother works for a company that builds Simmunition guns for LE departments. He asked me to help them save money by putting lowers together for them. He brought them to me on a Friday and needed them done the next day. So I sat up and did all of them that night. After you get in a rhythm it is pretty quick.
No real reason to post this other than, I think it is a cool pic and figured others here might appreciate it.
Here is the finished product.
I have done 14 more for him since this order. I used to use a brass punch and hammer to get the roll pins in, but this night when I did the 16 of them I needed to be quiet so as not to wake up the kids. So I finally tried the vice grips method of getting the pins in, and once I figured that out it made things much faster.