Armed Eye Doc

That is some pretty country to hike. What did you do when Sasquatch photo-bombed your wife and Doc?

They don't have any at the moment, but get on an email notification with https://www.targetsportsusa.com/large-rifle-primers-c-2810.aspx They will likely get some for sale.

A job for the day. Did you hear what Yoda said the first time he saw himself in 4K. "HDMI"

Nice looking rifle. I look forward to hearing the range report.

Tranquilized is more likely

I was innocent and naive when I joined this forum. (Runs for shelter from the lightning bolt) All I have to say in my defense is...

I forgot about that note.

I can donate a dust cover.

As I said, I found a few that I forgot I had. If someone wants one, let me know. @JBMatt, got any spare money hanging around?

It could have been the gas block that you moved. It may be the gas port. But you have not shot it near enough to have it broken in yet. Make sure it is well lubed and shoot it with your adjustment. Others may see something in your numbers that need adjustment though.

I was going through some old parts and ran across some of these. Interested? It might not be compatible with the awesome paint job that Tom will put on it.

Awesome wedding present, Jim. Most brides would not welcome such a gift on their wedding day. Your nephew picked a good one.

I'm not sure about early versions, but they are now (at least since 2013 when I got mine) called LAR-8.

Is this what you have? https://www.del-ton.com/Del-ton-Inc-ECHO-308-Rifle-p/r3fth16-0.htm

Since AR15 and 398ARs use the same diameter receiver extension, there should not be an issue. Law Tactical states that it will work on either format. One thing to consider is the added weight of the buffer insert and what it does to the recoil and functionality of the rifle. Here is a good breakdown of the weights involved in the Law Tactical folder and different buffer weights. Just like you found out with your gas port diameter, the buffer system has to be correct as well.

Now @Belt Fed can't even afford his internet service because of you.

Welcome to the forum. @98Z5V can calculate what size the hole needs to be.

@98Z5V forgot to mention 7mm-08 Remington. I'm pretty sure he has that caliber as well. If not, I know he is planning for it.

He called Armalite and they did exactly what you said they would and pieces together a kit and he bought one. Report back when you have tested the various parts to let us know what you discovered. I bet it will be exactly what you have been told here.

As others have said, take the Armalite kit if they can piece it together. It will be a functioning recoil system without a doubt. If there is a problem with rifle function, that will not be the problem.

I did that with about 15 pistol magazines. I knew I left them somewhere, maybe in AZ. I spent about $500 replacing them and my brother found them in a place I had looked at least twice. Oh well, you can never have too many magazines.

New 5FDP

Welcome to the forum. Is it a factory gun or did you/someone build it from parts? Can you post a more detailed list of your gun and its parts? You already know this, but there many things that can affect accuracy with the barrel being one of them. ARs are different than bolt guns and large frame ARs are different than AR15s.