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[–] x5060 0 points 2 points (+2|-0) ago  (edited ago)

If you are looking to build an Ar-15 lower from parts I highly recommend the AR15.com guide. I used it about 13 years ago to build my first firearm.

https://www.ar15.com/guides/files/tutorials/assembly/lower/index.html?gid=183

As for 80% lower machining I would recommend some youtube videos but I have no idea which ones are still left. =(

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[–] Winchester270 0 points 2 points (+2|-0) ago 

I've built one following you tube, it really wasn't difficult. Took a few hours just taking our time, but it was a great father-daughter project.

[–] [deleted] 0 points 0 points (+0|-0) ago 

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[–] Voopin__Voopin 0 points 1 points (+1|-0) ago 

you're probably already very aware, but i've seen it done with a drill press and end mill bit.

finished result wasnt too pretty/smooth on the inside, but that can be fixed if one desires. (probably using a router, lol)

what's your opinion on router versus drill press methods? (asking this of everyone here @Winchester270 @Thyhorrorcosmic13 @smite1911 @tossyokeys )

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[–] devonmoyer1 0 points 0 points (+0|-0) ago 

I used a ryobi 163 which has an awesome depth knob with measurments so after each pass i could adjust the knob in 1/4" increments and keep going.

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[–] 556_ 0 points 0 points (+0|-0) ago 

I used a rigid palm router for all mine. Way easier than using a full-size plunge router.. you have much more control

[–] [deleted] 0 points 2 points (+2|-0) ago 

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[–] Thyhorrorcosmic103 0 points 2 points (+2|-0) ago 

You can also buy drop in triggers, usually more pricey but much easier. The action is usually much better as well.

The hardest part for me is always the bolt catch roll pin. I scratch 1/2 of the ones I build.

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[–] smite1911 0 points 1 points (+1|-0) ago 

They make special offset punches for that, although once you get it started, I've found something like the knipex "pliers wrench" to be the easiest way to get it in the rest of the way

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[–] LCCVC [S] 0 points 1 points (+1|-0) ago 

Hmm ok Ill look more into it. Thanks for the heads up.