Interest in finishing your own AR Lower Receiver

[okietom]

I am interested in this project also. I would buy an 80% lower now if I could. I like the idea. I have a friend that made some lowers from blanks. He is a machinist and he made them on manual machines at work. His boss looked the other way.

 

[CASTRATE]

A matching billet upper and lower in 308 would be fantubular

 

[OKC_Gunsmith]

Please excuse my lack of knowledge, what is broaching? To me they look fine.

The broaching process as referenced here refers to shaping the metal in a way that is not easily formed by conventional machining processes. E.g. tight corners / sharp internal lines. If you look at earlier pictures in this thread you will see the mag wells were initially oval shaped and in the pictures above they are shaped to accept magazines. Check here for a video of the broaching in action. https://www.youtube.com/watch?v=erO7RMP_GzE

A matching billet upper and lower in 308 would be fantubular

Soon. I've got a few goodies planned in the upcoming months, just need to get this under my belt first.


On a side note, the measuring arm shipped today, so I should have pictures shortly.

 

[Powerman620]

I would.love to build on for my 25th year in fire service, kinda going away gift to myself.

 

[OKC_Gunsmith]

Hey all, sorry for the delay. I've been in and out of the country and working with various vendors for the arms company, but I've not forgotten about the 80% enthusiasts.
The measuring arm arrived, and the issues with broaching have been resolved. I'm also working with another shop here in Oklahoma that has the ability to EDM the magwells if anyone is interested in that option.
More to come!

Oh, and a teaser for some of the other products coming soon.

 

[XD-9Guy]

I'm glad to see this hasn't fallen through the cracks.

 

[tRidiot]

What does "EDM the magwells" mean?

 

[amcardon]

It means using an EDM to cut the magwells. An EDM is about the most precise machine you could ever ask for.

Sent from my SGH-T999 using Tapatalk 2

 

[OKC_Gunsmith]

What does "EDM the magwells" mean?

Check this video out for more info. https://www.youtube.com/watch?v=pBueWfzb7P0

Will a properly broached magwell accept magazines and perform without issue? Yes.
Is it technically as accurate as a EDM magwell? No.

Is it worth the extra money? Your call.

 

[tRidiot]

So how are things looking for this? I've got another person who is DEFINITELY interested. And we said the custom rollmarks and serials are easily doable, is that right?