I am having some lowers machined and I am wanting them to be able to accept my RDIASs.  I am nowhere near my AR and RDIAS right now though to measure, so I'm wondering if anyone here can help.  Does anyone have the dimensions needed for a low shelf AR lower?  Or is there another RDIAS owner here that may no as well?  they have a program for the mill for an AR interior, be we just want to double-check and make sure it is to correct SP1 / low shelf specs.  Thanks everyone!

You have come to right place.  There are many helpful people here.  So that we can help, maybe you can provide some greater info.

You use the plural for RDIAS.  Do you have more than one?  These questions seem so unusual that a photo of your form 4 with your name and address redacted might lend some credibility to your query.

What AR do you have that you are not near to measure?  Why is it special?

Who is "they"?  The ones who have a program for the AR interior.

What lower or lowers do you have that need to be milled rather than just buying a new low shelf lower brand new?  Is there something special about them?

Obviously the hive is not responding.  I have and look forward to your responses.

The reason that people don't get involved in these sorts of questions is that they burn up a lot of time and effort and there is a real risk that it is actually Peter Strzok who is asking the questions.  I hope you understand.

That is Mike, he has his own YouTube channel literally called “Machine Gun Mike”

His transferable MG collection is probably larger than all of the users of this forum combined.

you obviously dont know the answer and posted a ton of BS questions.

I have a low shelf upper (aero) and from the top of the lower to the bottom of my shelf is roughly 15.88mm/.625 inches

M16 manual says .630

Not sure why you are so spiteful.

You clearly had no intention of helping him or steering him in any direction. You asked him to show a copy of his form 4's and various other unhelpful comments and suggestions. I normally would never even respond to comments like yours but it was super frustrating reading your reply and not wanting to build a machine that allows you to punch people in the face over the internet.

Mike is a good guy, He still needs to buy my BAR mags

believe me there are a few guys a TON of MGs here but are quiet about it.

 
I am not a shrink, but I think you have some issues you may want to examine with a professional.

Interestingly enough, I had the original Colt lower drawing from about 30 years ago.  I already sent it to this fellow.  

Done here.

I’m a small fish in the MG world so I don’t have the best frame of reference for what some consider to be a large collection.

If I could acquire a collection even a tenth of the size of what I’ve seen on his channel I would be satisfied.

Between a mortgage, car payments, and kids I don’t know where ppl come up with the money to buy anything other than entry level priced MGs.

Depth gauge says 15.88mm which is .625 inches and the m16 manual says .630

And for the OP, my RDIAS lowers are .620. Sorry I did not see thread before this nonsense.

Wow.  All my mistake for getting involved.  Probably not going to do this again.  I really had no idea of the venom and spite that would result.  

The person who first asked the question, and has not returned to the thread, was unknown to me.  No one else had responded to him in 6 days.  I was trying to sort this out the best I could.  My guess was that no one else would respond because RDIAS owners already understand these issues.  I don't like talking to posers or cops about NFA issues so a redacted F4 would take this issue off the table.  Redacted F4s are sometimes posted, and not just by idiots.

I own two sears, the first I purchased over 30 years ago.  I have helped a lot of people with these same issues and a lot of people have helped me.  I could talk about variances in sear body dimensions and how two RDIAS might not both work in the same lower.  Knowing if a guy owns two sear bodies is relevant.  I could talk about how to shim them, or better yet how to mill a specific lower for a specific sear body so that the body does not wear and there is no need to shim.  I could talk about why milling certain lowers does not make financial sense.  I could help on many aspects, but I think I will stop at just forwarding the original Colt drawing which, in this thread so far, contains the only dimensions a machinist could use for this project.

Sort of a sad conclusion.



Really kind of depressing.

You are not the victim here. Your post provided zero value and you got called out for it by two separate people. Go back and read it a couple times from the perspective of someone you don't know on the other side of the US/world.

You could of publicly posted the colt drawings, instead you chose to publicly be a douche canoe and then state you privately sent the colt drawing after being called out for being a douche.

Then you come back crying about how the internet is mean and it's a terrible day for society because you are so helpful and being shamed for it, then make comments about posers and cops.

If you still really think you were being helpful in this thread then you should probably keep your helpful thoughts and comments to yourself and be a read only member.

Go back to GD.

Thank you very much for the strait forward answer.  That’s all I needed to double check.  I thought it was .630, but it’s been YEARS since I needed this information.  Thank you for the answer and help!  Take care.

Mike

I honestly don’t post most of what I own, like my Type 1 FG42.  Gotta keep some stuff secretive.  ??

On another note, am I supposed to buy mags from you?  If so, sorry.  I must have forgot.  How much and how many?  Sorry again.  Message me.  Thanks!

Hahaha.  Your post made my day.  Thank you!

Only thing....I’m not a dealer anymore.  I got out a while ago.  While it was fun, it didn’t really benefit me much since everything I own is mine anyways, and it just took up too much time for me personally.  It’s better just being a collector again now!  ??

Thanks everyone for the responses.  I’m not on here often, but have the answer I needed.  Plus I got some great entertainment.  ??

Mike you are fine. IM sent