Ar 15 Jig

[rondog]

As a former machinist, I'd love to know what all's involved in completing an 80% lower. All I can imagine is screwing it up horribly without having a milling machine to work with.

[Buff]

As a former machinist, I'd love to know what all's involved in completing an 80% lower. All I can imagine is screwing it up horribly without having a milling machine to work with.

I have a 5axis NC Mill in my shop and it sure is nice for this type of work.

[00tec]

As a former machinist, I'd love to know what all's involved in completing an 80% lower. All I can imagine is screwing it up horribly without having a milling machine to work with.

This jig has depth gauges built in. Just follow those, set the router depth tightly, and you're golden. You follow the top plate of the jig with the non-cutting part of the end mill to get the right dimensions.