Any interest in jigs to finish 80% lowers

[newb]

Would be interesting. I have heard good things about these:

http://www.80percentarms.com/collections/lower-jigs

Depending on what lowers you use.

A friend had that one, it has some pros such as the milling bit depth set point on it. Although he had to trim part of his various lowers to fit into the jig.

We've recently been using Hell Fire Armory jigs. Although my friend is working on making a jig from steel, especially the top plate to hold up longer.

The Modulus Arms link LRRPF52 posted looks pretty slick.