Make an older ar 80% jig to work with an ar 9 lower, (vent)

[corey012778]

I bought an grab bag from a dealer, there was a ar 9 Lower. Spent two hours “drill press” milling one of the mag support to fit the mag release. Very slow and took my time. Finished with a router. Should of did the router the whole time. When went to test fit, found out I needed to cut a channel for where the pin goes for the glock style mag release[smilie=b:

Went looking in a box, found another jig, it fit. Problem, lost all the top plate screws. Same goes with one I was adapting.

What a morning

[MrWolf]

I tried to complete an 80% AR lower with my drill press. Forgot to tighten down everything from after I moved. Just enough play to ruin it. Know how you feel. Good luck.
Ron

[lesharris]

Router method is easier.

[corey012778]

Ended up ordering an easy jig. Did not want to make any mistakes and end up ordering another. Don’t remember where I order the one jig from

[Ed K]

Routers are designed to cut sideways. Drill press only down - not with side loading. Using a drill press may not only ruin your lower but maybe harm the drill press itself.