Lower receiver magwell vise block
1/4" Clevis pin - For installation of front pivot pin.
1/16" Allen Key - For Magpul enhanced and MOE trigger guards.
RRA Stock wrench - For carbine, A2, and Magpul UBR.
1/8" roll pin starter punch
3/32" roll pin starter punch
$45
I’m fairly new to AR’s, but I do have stripped lower around that I want to put some good innerds in. I don’t have much in the way of tools lying around (apartment living), but I do have access to a vice.
The only tool in that kit that you really need is the castle nut wrench (stock wrench). The roll pin punches could be handy but aren’t a necessity. Most people assembly a lower with a small hammer, vice grips, some tape, and a few punches.
But, if you have nothing in the way of tools, it’s a decent start, and the only other thing you will need is a hammer.
Eta sadmin beat me to it, and that’s a generous offer.